The CAT 2025 exam is around the corner, and candidates must focus on topics that appear often in the exam. Topics like ratio, proportion, and selection-based puzzles test both logic and speed, and hence, candidates must prepare for those accordingly. Whereas, Reading comprehension and past year questions require a clear method to approach confidently. On day 26 of our CAT 2025 preparation, we will cover simple strategies to build strong fundamentals and improve accuracy in these important sections. Doing these helps to master the basics of Ratio and proportion and also increases your marks in the exam.
Tips and Tricks to Solve Ratio and Proportion Questions in CAT 2025
Study resources for CAT 2024
Top Ebooks for CAT 2025 Exam Preparation
ratio and proportion cat questions
CAT 2024 QA Preparation Tips (Ratio and proportions CAT questions)
Ratio and Proportion is an important topic in the CAT 2025 QA section, often used to test your conceptual clarity and calculation speed. It forms the base for many arithmetic questions, including time, work, and mixtures. A clear understanding of ratios helps in comparing quantities, solving real-life word problems, and interpreting data effectively. Before diving into advanced questions, make sure your basics are strong and well-practiced.
Comparing the quantities (a : b)
Dividing in the ratio by parts method
Learn the concept of the compounded ratio
Duplicate ratio of a : b is a2 : b2
Triplicate ratio of a b is a3: b3
Sub-duplicate ratio of a: b is a1/2: b1/2
Sub-triplicate ratio of a: b is a1/3: b1/3
Practice complex problems
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AT Exam Focus on Ratio, Proportion, Selection-based Puzzle Questions and Strategies for RC & PYQs- Day 26
Ratio and Proportion Definition:
Ratio and Proportion are fundamental concepts used to compare quantities and establish relationships between them. They are extensively used in various fields, including arithmetic, algebra, geometry, and real-life problem-solving. We have to learn the ratio and proportion formula, the difference between ratio and proportion, and practice various ratio and proportion problems on the ratio and proportion worksheet to have more grasp on this topic.
Examples of Ratio:
Fruit Basket : In a fruit basket, there are 4 apples and 6 oranges. The ratio of apples to oranges is 4 : 6, which can be simplified as 2 : 3.
Students in a Classroom: In a classroom, there are 30 boys and 20 girls. The ratio of boys to girls is 30 : 20, which can be simplified as 3 : 2.
CAT 2025: VARC, DILR, and Quant MCQs & Weightages
Comprehensive CAT prep guide with focused practice on Verbal Ability, Data Interpretation & Logical Reasoning, and Quantitative Aptitude.
Mixing Juice: To make a fruit juice mixture, you need to mix 2 cups of apple juice with 3 cups of orange juice. The proportion of apple juice to orange juice is 2 : 3.
Speed and Time: A car travels 300 miles in 5 hours. To find the proportion of speed to time, we divide the distance by time, which gives us 300 miles / 5 hours = 60 miles per hour.
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Q1. The product of two positive numbers is 616. If the ratio of the difference of their cubes to the cube of their difference is 157 : 3, then the sum of the two numbers is:
[CAT Exam: 2019]
58
95
85
50
Answer: (D)
Let the numbers be x and y.
So, xy = 616
Also, (x3 – y3)/ (x-y)3 = 157/3
⇒ [(x - y) (x2+ y2+ xy)]/ (x-y)3 = 157/3
⇒ (x2+ y2+ xy)/ (x2 + y2 - 2xy) = 157/3
⇒ 3(x2 + y2) + 3xy = 157(x2 + y2) - 314xy
⇒ 154(x2 + y2) = 317xy
⇒ 154(x2 + y2) = 317 × 616
⇒ (x2 + y2) = 1268
We know that, (x + y)2 = x2 + y2 + 2xy
⇒ (x + y)2 = 1268 + 2 × 616
⇒ (x + y)2 = 2500
⇒ x + y = 50
Hence, the correct answer is 50.
Q2. Raju and Lalitha originally had marbles in the ratio 4 : 9. Then Lalitha gave some of her marbles to Raju. As a result, the ratio of the number of marbles with Raju to that with Lalitha became 5 : 6. What fraction of her original number of marbles was given by Lalitha to Raju? [CAT exam: 2018]
1/5
¼
7/33
6/19
Solution: (C)
Let Raju and Lalitha initially have 4x and 9x marbles with them.
Lalitha gave y marbles to Raju, then
(4x+ y)/ (9x – y) = ⅚
⇒ 24x + 6y = 45x – 5y
⇒ 11y = 21x
⇒ y = 21x/11
she gave a fraction of Lalitha’s original number of marbles to Raju = (21x/11)/ 9x =7/33
Q3. If the evaluation of company A and company B are in the ratio of 3 : 4 while that of B and C are in the ratio 2 : 1, then which one of the following is a possible value of evaluation of company A if the difference of evaluation of company B and company C is multiple of 14?
323 crores
268 crores
423 crores
420 crores
Solution: (D)
A : B : C = 3 : 4 : 2 (since A : B = 3 : 4 and B : C = 2: 1)
Then the evaluation of companies A, B, and C are 3y, 4y, and 2y respectively where y is a positive integer.
According to the question:
4y- 2y = 2y is multiple of 14
Evaluation of company A = 3y is a multiple of 7 and 3.
420 satisfies this condition.
Hence, the correct answer is 420 crores.
Q4. In a bag there are coins of three denominations of Re. 1, Rs. 2 and Rs. 5. The first two are in the ratio of 2 : 3 and the last two in the ratio of 4 : 5. If the total number of coins in the bag is less than 100, the total value of coins in the bag can be Rs. _____________. Fill in the blank.
107
214
321
Cannot be determined
Solution: D
In terms of number of coins, Re. 1 : Rs. 2 = 2 : 3 and Rs. 2 : Rs. 5 = 4 : 5.
∴ Re. 1 : Rs. 2 : Rs. 5 = 8 : 12 : 15
Total number of coins = 8 + 12 + 15 = 35 units
Thus the only integral possibilities below 100 coins in total are 35 coins or 70 coins.
If the total is 35, then Re. 1 = 8 coins, Rs.2 = 12 coins and Rs. 5 = 15 coins.
∴ Total Value = 8 + 24 + 75 = Rs. 107
If the total is 70, then Re.1 = 16 coins, Rs. 2 = 24 coins and Rs. 5 = 30 coins.
∴ Total Value = 16 + 48 + 150 = Rs. 214
Both the values are there in the options.
So, the content of the blank cannot be determined.
Hence, the correct answer is " Cannot be determined ".
CAT 2024: Prerequisite:
Fraction and comparison
Basics of calculations
CAT syllabus: References to Study (Theory):
How to Prepare for Quantitative Aptitude for CAT by Arun Sharma (7th Edition: Page No 281- 285)
How to Prepare for Quantitative Aptitude for CAT by Arun Sharma (7th Edition: Page No 286- 300)
CAT Previous year Papers.
CAT Sample Papers.
CAT 2025 DILR Preparation Tips for Logical Reasoning and Data Interpretation
Master CAT 2025 DILR by practising puzzles, caselets, and data sets daily. Focus on logical clarity, visual representation, and time management to boost accuracy and speed in complex reasoning problems. However, you should prepare all the topics prescribed in the CAT 2025 Syllabus.
CAT Previous Year Questions on Selection-based Puzzles:
Comprehension:
Princess, Queen, Rani and Samragni were the four finalists in a dance competition. Ashman, Badal, Gagan and Dyu were the four music composers who individually assigned items to the dancers. Each dancer had to individually perform in two dance items assigned by the different composers. The first items performed by the four dancers were all assigned by different music composers. No dancer performed her second item before the performance of the first item by any other dancers. The dancers performed their second items in the same sequence as their performance of their first items. [CAT exam: 2019]
The following additional facts are known.
No composer who assigned the item to the Princess assigned any item to the Queen.
No composer who assigned the item to Rani assigned any item to Samragni.
The first performance was by Princess; this item was assigned by Badal.
The last performance was by Rani; this item was assigned by Gagan.
The items assigned by Ashman were performed consecutively. The number of performances between items assigned by each of the remaining composers was the same.
Q1. Which of the following is true?
The second performance was composed by Dyu.
The third performance was composed by Ashman.
The second performance was composed by Gagan.
The third performance was composed by Dyu.
Q2. Which of the following is FALSE?
Samragni did not perform in any item composed by Ashman.
Princess did not perform in any item composed by Dyu.
Queen did not perform in any item composed by Gagan.
Rani did not perform in any item composed by Badal.
Q3. The sixth performance was composed of
Badal
Ashman
Dyu
Gagan
Q4. Which pair of performances were composed by the same composer?
The second and the sixth
The first and the seventh
The third and the seventh
The first and the sixth
Solution:
Trick 1: Look for concrete information first
P, Q, R, S (Four finalists)
A, B, G, D (Four Composers)
Each dancer performed on items by two different composers.
P and Q have no composer in common.
R and S have no composer in common.
First four performances on items by four different composers and so the last four.
Items by A for two consecutive performances i.e., Dance 4 and Dance 5.
P performed 1st (Item by B) and 5th.
R Performed 4th and 8th (Item by G).
Trick 2: Using the above information, draw a table for the selection.
D (2nd or 3rd item and 6th or 7th item)
G (2nd or 3rd)
B (6th or 7th)
Trick 3: Elimination of Possibilities
Clue:
The number of performances between items assigned by each of the remaining composers was the same.
Case 1: If item 2 is composed of G which is performed by Q (From table) then item 3 will be composed of D which is to be performed by S. Then item 6 is performed by Q and must be composed by D. Item 7 is performed by S and must be composed by B.
Now Sequence of items should be B G D A A D B G which is a violation of the above condition.
Case 2: If item 3 is composed of G which is performed by Q (From table) then item 2 will be composed of D which is to be performed by S. Then item 7 is performed by Q and must be composed by D. Item 6 is performed by S and must be composed by B.
Now Sequence of items should be B D G A A B D G which is a violation of the above condition.
Strengthen CAT 2025 VARC by reading diverse articles daily, improving vocabulary, and practising RC passages. Focus on inference-based questions, grammar accuracy, and time-bound practice to enhance comprehension and precision. Know about the previous year's questions on Reading Comprehension for CAT 2025.
Read the passage and answer the question based on it.
Understanding where you are in the world is a basic survival skill, which is why we, like most species, come hard-wired with specialized brain areas to create cognitive maps of our surroundings. Where humans are unique, though, with the possible exception of honeybees, is that we try to communicate this understanding of the world with others. We have a long history of doing this by drawing maps – the earliest version yet discovered was scrawled on cave walls 14,000 years ago. Human cultures have been drawing them on stone tablets, papyrus, paper and now computer screens ever since.
Given such a long history of human map-making, it is perhaps surprising that is only within the last few hundred years that North has been consistently considered to be at the top. In fact, for much of human history, the north almost never appeared at the top,
according to Jerry Brotton, a map historian… “North was rarely put at the top for the simple fact that north is where the darkness comes from,” he says. “West is also very unlikely to be put at the top because the west is where the sun disappears.”
Confusingly, early Chinese maps seem to buck this trend. But, Brotton, says, even though they did have compasses at the time, that isn’t the reason that they placed north at the top. Early Chinese compasses were actually oriented to point south, which
was considered to be more desirable than the deepest darkest north. But in Chinese maps, the emperor, who lived in the north of the country was always put at the top of the map, with everyone else, his loyal subjects, looking up towards him. “In Chinese culture, the emperor looks south because it’s where the winds come from, it’s a good direction. North is not very good but you are in a position of subjection to the emperor, so you look up to him,” says Brotton.
Given that each culture has a very different idea of who, or what, they should look up to it’s perhaps not surprising that there is very little consistency in which way early maps pointed. In ancient Egyptian times, the top of the world was east, the position of
sunrise. Early Islamic maps favoured south at the top because most of the early Muslim cultures were north of Mecca, so they imagined looking up (south) towards it Christian maps from the same era (called Mappa Mundi) put east at the top, towards the Garden of Eden and with Jerusalem in the centre.
So, when did everyone get together and decide that the north was the top? It’s tempting to put it down to European explorers like Christopher Columbus and Ferdinand Magellan who were navigating by the North Star. But Brotton argues that these early explorers didn’t think of the world like that at all. “When Columbus describes the world, it is in accordance with the east being at the top,” he says “Columbus says he is going towards paradise, so his mentality is from a medieval Mappa Mundi.” We’ve got to remember, adds Brotton, that at the time, “no one knows what they are doing and where they are going.”
Q1. Which one of the following best describes what the passage is trying to do?
It questions an explanation of how maps are designed.
It corrects a misconception about the way maps are designed.
It critiques a methodology used to create maps
It explores some myths about maps
Answer: B
Trick: See the first 2-3 lines of the first paragraph and the last 2-3 lines of the last paragraph to get an idea of the passage.
Q2. Early maps did NOT put the north at the top for all the following reasons EXCEPT
the North was the source of darkness
the South was favoured by some emperors.
East and south were more important for religious reasons for some civilisations
East was considered by some civilisations to be a more positive direction
Answer: B
Trick: Search the given line in the paragraph
Option A: Given in the second paragraph (True)
Option C: From third paragraph (True)
Option D: From the third and fourth paragraph (True)
Q3. According to the passage, early Chinese maps placed north at the top because
the Chinese invented the compass and were aware of magnetic north
they wanted to show respect to the emperor.
the Chinese emperor appreciated the winds from the south.
north was considered the most desirable direction.
Answer: B
Trick: Search the question in the passage
See the third paragraph to find the answer.
CAT 2024: Prerequisite:
Tenses and Parts of Speech
Comprehension reading skills
CAT Tricks/Strategies to Solve the Comprehension:
Read first then attempt
After reading the questions, refer to the paragraph.
Rationale (Eliminate wrong options generally with words like ‘never’, ‘always’, and ‘maybe’
CAT exam 2024: References to Study (Theory):
How to Prepare for Verbal Ability & Reading Comprehension for CAT by Meenakshi Upadhyay and Arun Sharma (9th Edition)
Tips and Tricks to Solve Ratio and Proportion Questions in CAT 2025
Ratio and proportion questions are a staple in CAT’s Quantitative Aptitude section, and solving them quickly can significantly improve your score. The following tips with examples will help you approach these problems efficiently.
1. Simplify Ratios Before Solving
Always simplify ratios to their lowest terms before attempting to solve problems. Simplification reduces complexity and helps avoid errors during calculations. For example, if a problem gives the ratio 12:18, simplify it to 2:3. Working with 2:3 instead of 12:18 makes subsequent steps easier and faster.
2. Use Cross Multiplication for Missing Values
Cross multiplication is a powerful method to find unknown quantities in ratio equations. For instance, if ab=34\frac{a}{b} = \frac{3}{4}ba=43 and you know b=16b = 16b=16, cross multiplying gives a=34×16=12a = \frac{3}{4} \times 16 = 12a=43×16=12. This method is quicker than setting up equations or guessing values.
3. Convert Ratios into Fractions for Operations
Treat ratios as fractions when you need to add, subtract, or compare them. This simplifies calculations significantly. For example, to add ratios 2:3 and 1:4, convert them into fractions: 23+14=812+312=1112\frac{2}{3} + \frac{1}{4} = \frac{8}{12} + \frac{3}{12} = \frac{11}{12}32+41=128+123=1211. This technique is especially helpful in mixture or work problems.
4. Create Equivalent Ratios for Easier Calculations
Sometimes, scaling ratios by multiplying or dividing both terms by the same number can make calculations simpler. For example, the ratio 5:7 can be converted to 10:14 by multiplying both terms by 2. This helps when you need to compare or combine ratios with different bases.
5. Apply the Alligation Method for Mixtures
The alligation method is a quick way to solve mixture problems involving different concentrations or ratios. Suppose you mix two solutions with 20% and 50% concentrations in the ratio 3:2. Using alligation, the final concentration is calculated as
Complex problems involving multiple ratios can be simplified by breaking them into parts. For example, if A:B = 2:3 and B:C = 4:5, find A:B:C by equalising the common term B. Scale A:B by 4:6 and B:C by 3:5, resulting in A:B:C = 8:12:15. This step-by-step approach reduces confusion and errors.
7. Practice Common Ratio-Based Word Problems
Regular practice with word problems involving ages, work, speed, and mixtures will solidify your understanding of ratios. For example, if A and B’s ages are in the ratio 3:5 and their combined age is 40 years, then A’s age is
33+5×40=15 years\frac{3}{3+5} \times 40 = 15 \text{ years}3+53×40=15 years
CAT Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters
Preparing for the CAT 2025 exam becomes easier with the right ebooks. These books cover all key areas like QA, VARC, and DILR. Easy to carry and read anywhere, ebooks help you study smartly and revise important topics at your own pace. Go through the table below to get download links for different topics.
Q: Why is revisiting previous year questions (PYQs) helpful for CAT preparation?
A:
PYQs provide insight into the exam’s question patterns, difficulty levels, and frequently tested topics. It helps candidates tailor their preparation and develop time management strategies.
Q: How can reading comprehension (RC) strategies improve my CAT score?
A:
Effective RC strategies, such as skimming, identifying key points, and understanding question types, enable quicker comprehension and accurate answers, which are critical in the Verbal Ability section.
Q: What are selection-based puzzle questions, and how can I prepare for them?
A:
Selection-based puzzles involve logical reasoning and arranging or selecting items based on given conditions. Practising different puzzle types and understanding common patterns enhances problem-solving skills in this area.
Q: Why is it important to focus on ratio and proportion questions for the CAT exam?
A:
Ratio and proportion problems frequently appear in the Quantitative Aptitude section of the CAT. Mastering these concepts helps solve a wide variety of problems efficiently, improving speed and accuracy.
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The CAT 2025 exam is a national-level MBA entrance test for IIMs and top B-schools in India. It will be held on 30th November 2025 in computer-based mode across ~170 cities.
The registration is open from 1st August to 13th September 2025 on
iimcat.ac.in
.
Admit cards will be available from 5th November 2025 onward.
Graduates with at least 50 marks (45 for SC/ST/PwD) are eligible to apply.
The exam tests English, Reasoning, and Quantitative Aptitude in three timed sections.
With 305 marks in ICAR PG and being from ST category, your chances of getting an AIEEA (CAT) seat is good, especially in plant sciences and less competitive subjects
M/s Deloitte Touche Tohmatsu Limited, one of the top four audit and accounting firms in the world with headquarters at London, UK, and with an operational presence in 153 countries, hires Management Trainees (MT) from all the premier management institutes of India thrice every year, in the months of January, May and September.
Each new group of Management Trainees (MT) have to go through a four month rigorous training schedule, after which they have to pass through a test consisting of a written assessment and a case-analysis. The top hundred ranked Management Trainees (MT) based on the performance in the test are confirmed as Management Executives (ME). The rest are given the opportunity of undergoing the training for four months one more time along with the next batch of Management Trainees (MT) and then passing through the subsequent test consisting of the written assessment and case-analysis. The Management Trainee (MT) who fails to get confirmed as a Management Executive (ME) the second time is fired.
The scatter-graph below depicts the number of Management Trainees (MT) at Deloitte taking the tests from January 2020 till May 2022, and the vis-à-vis hired Management Trainees (MT) at Deloitte who were fired :
It is also known that for the month of September 2019 at Deloitte, 96 hired Management Trainees (MT) failed to be confirmed as a Management Executive (ME) the first time, and that 36 hired Management Trainees (MT) were fired.
Question :
In which test did the minimum number of Management Trainees (MT) get confirmed as a Management Executive (ME) in the second attempt ?
Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'.
They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared.
They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders.
On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries.
On the backdrop of the above information answer the questions given :
Question:
Assuming that the next customer's order could only be attended to when the previous customer's order was closed, at what time would the first customer's order be considered closed ?
Six sticks of equal lengths were kept in the vertical position in an empty flower-vase, to be arranged at the six corners of a regular hexagon. The two ends of each of the sticks were of different colours.
The top ends of the sticks were one of each of the following colours – Red, Cyan, Pink, Brown, Black and Green. The bottom ends were one of each of the following colours – Blue, Yellow, White, Orange, Purple and Grey. Both the sets of colours mentioned were in no particular order.
It was also known that :
a) The stick with the red colour was opposite to the stick with the blue colour
b) There were exactly two sticks whose both ends had colours whose names started with the same letter
c) The stick with the grey colour was adjacent to the stick with the white colour
d) The stick with the cyan colour was adjacent to both the sticks with the brown colour and the one with the blue colour
e) The stick with the purple colour was adjacent to both the sticks with the grey colour and the one with the green colour
f) The stick with the white colour was opposite to the stick with the green colour
Question :
What was the colour of the bottom end of the stick having brown colour at the top end ?
Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'.
They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared.
They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders.
On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries.
On the backdrop of the above information answer the questions given :
Question:
Assuming that the next customer's order could only be attended to when the previous customer's order was closed, at what time would the third customer's order be considered closed ?
Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'.
They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared.
They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders.
On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries.
On the backdrop of the above information answer the questions given :
Question:
Suppose Moloy and Niloy had decided to process multiple orders at the same time, however strictly prioritising a first come first serve basis, when would the second customer's order be considered closed ?
Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'.
They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared.
They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders.
On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries.
On the backdrop of the above information answer the questions given :
Question:
Suppose Moloy and Niloy had decided to process multiple orders at the same time, however strictly prioritising a first come first serve basis, when would the third customer's order be considered closed ?
Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'.
They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared.
They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders.
On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries.
On the backdrop of the above information answer the questions given :
Question:
A fourth customer comes in and orders two plates of French Toast at 6.24 pm. Suppose Moloy and Niloy had decided to process multiple orders at the same time, however strictly prioritising a first come first serve basis. For exactly how many minutes would one of the friends be idle from 6.00 pm till serving the last customer, assuming that the four customers were the only ones to have come in within the period being discussed ?
Two friends Moloy and Niloy passed out from the Purulia Institute of Science and Technology with B.Tech degrees in Mechanical Engineering, but even after a year placement was hard to find. So they decided to take the challenge head-on, came down to Kolkata, rented a garage space on Park Street, and having an affinity towards making people enjoy good food, started their firm named 'B.Tech Bread-Omlette Wala'.
They started with three items on the menu. One was the French Toast which could be prepared in 3 minutes. The second was the Egg Tortillas which took 15 minutes to prepare. Any one of Moloy and Niloy could prepare any one of them at a time. The third was the Egg Bhurji with French Fries. This however was prepared on an automated fryer which could prepare 3 servings at a time and took 5 minutes irrespective of the number of servings equal to or below 3. The fryer did not need anyone to attend to it, and the time to put in the raw ingredients could be neglected. So one could tend to the preparation of other items while the Egg Bhurji with French Fries were being prepared.
They wanted to serve the orders as early as possible after the order was given. The individual items in any order were served as and when all the items were ready, and the order was then considered closed. None of the items on the menu were prepared in advance in anticipation of future orders.
On the first day, 3 groups of customers came in and ordered at 6.00 pm, 6.10 pm, and 6.13 pm. The first order was for a plate of Egg Tortillas, two plates of French Toast, and three plates of Egg Bhurji with French Fries. The second order was for a plate of French Toast and two plates of Egg Bhurji with French Fries. The third order was for a plate of Egg Tortilla and a plate of Egg Bhurji with French Fries.
On the backdrop of the above information answer the questions given :
Question:
Had Niloy been absent on that day, and assuming that the next customer's order could only be attended to when the previous customer's order was closed, at what time would the fourth customer's order (refer to the previous question) be considered closed ?
The bar-graph given below shows the foreign exchange reserves of Nepal (in million Rupees) from 2014 to 2021. Answer the following questions based on the graph :
Question:
What was the percentage increase (rounded to the nearest integer, if deemed necessary) in the foreign exchange reserves in 2020 over 2016 ?
The Jadavpur University’s Prince Anwar Shah Road hostel consists of two large separate buildings, one for the ladies and the other for the gents, while having a common kitchen and dining hall. It is the hostel of the CS and the EEC department of engineering students of the university.
In recognition of the growing dissatisfaction and hence complaints among the inmates of the hostel regarding the menu served for dinner, the Dean of the engineering department, Dr Aparesh Sanyal, personally decided to investigate the matter. He set about collecting information about the preference of dinner among the inmates, separately from the gents and the ladies wing of the hostel.
Dr Sanyal was able to gather the following partial information :
Hostel inmates
Menu preference for dinner
Total
Egg Meal
Fish Meal
Chicken Meal
Gents
20
Ladies
64
Total
60
The Warden of the hostel was consulted, who after investigation declared that the following facts were clear :
1. Forty percent of the hostel inmates were ladies
2. One-third of the gentlemen inmates preferred an egg meal for dinner
3. Half the hostel inmates preferred either fish meal or chicken meal
Question:
What proportion of the lady hostel inmates preferred a fish meal for dinner ?
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AT Exam Focus on Ratio, Proportion, Selection-based Puzzle Questions and Strategies for RC & PYQs- Day 26
