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Hello CAT 2024 candidates, On November 24, the CAT exam 2024 for MBA admissions in 2025–2027 will take place. In this CAT 2024 60-day preparation guide series of Careers360, we will discuss the strategies on probability questions for day 39 that can help you prepare well and crack the CAT entrance test 2024.
This article includes probability questions and other difficult aptitude questions on probability, Data sufficiency questions for CAT and Synonyms for CAT Exam. CAT Preparation 2024 in 60 days
Aspirants can also refer to the Permutation and Combination and Probability problems with solutions pdf.
CAT Exam Important Topic: Strategy to Prepare Probability Questions For CAT Exam, Permutation and Combination
Important Concept/Formula Used in CAT Probability Practice Questions
CAT Probability or Chance:
Probability is a quantitative measure of the chance of occurrence of a particular event.
PE=n(E)/n(S), n(E) = no of favourable events; n(S) = Sample Space.
Random Experiment probability problems
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If all the possible outcomes of an experiment are known but the exact output cannot be predicted in advance.
Examples
(i) Tossing of a fair coin (Total Outcome 2)
(ii) Dice probability questions
Throwing an unbiased die (Total Outcome 6)
(iii) Cards game probability questions
Drawing a card from a pack of shuffled cards
A pack or deck of playing cards has 52 cards which are divided into four categories as given below
a. Spades (♠)
b. Clubs (♣)
c. Hearts (♥)
d. Diamonds (♦)
[13 Cards: 9 Number cards, 1 Ace, 1 Jack, 1 Queen and 1 King] in each type
Sample Space: Sample Space is the set of all possible outcomes of an experiment. It is denoted by S.
Event: Any subset of a Sample Space is an event.
Equally Likely Events: Events are said to be equally likely if there is no preference for a particular event over the other.
Examples
(i) When a coin is tossed, Head (H) or Tail is equally likely to occur.
Mutually Exclusive Events: if the occurrence of one of the events excludes the occurrence of the other
Example
(i) Tossing of a coin: either Head or Tail.
(iii) Rolling of a die: Either odd or even.
Independent Events: The occurrence or non-occurrence of one event does not influence the occurrence or non-occurrence of the other.
Exhaustive Event is the total number of all possible outcomes of an experiment.
Examples
(i) When a coin is tossed, we get either Head or Tail. Hence there are 2 exhaustive events.
Q1. Difficult aptitude questions on probability
A coin of radius 3 cm is randomly dropped on a square floor full of square-shaped tiles of 10 cm each. What is the probability that the coin will land completely within a tile? In other words, the coin should not cross the edge of any tile.[XAT 2018]
0.91
0.5
0.49
0.36
0.16
Solution: (E)
The radius of the coin is 3 cm. Since the coin should not cross the edge, the centre of the coin should at least be 3 cm away from the edge of the tile.
If we left 3 cm from all the edges, then the centre can lie in a square of 4 x 4.
So, Probability = Area of square 4 x4/ Area of tile
= 16/100 =0.16.
Q2. A die is thrown three times and the sum of the three numbers is found to be 15. The probability that the first throw was a four is [IPMAT 2019]
1/6
¼
1/5
1/10
solution: [C]
We can get sum 15 if
Case 1: 6, 6, 3
Total outcome = 3!/2! = 3
Favourable outcome (getting 4 at first throw) = 0
Case 2: 6, 5, 4
Total outcomes = 3! = 6
Favourable outcome (getting 4 at first throw) = 2 (4, 5, 6 or 4, 6, 5)
Case 3: 5, 5, 5
Total outcome = 1
Favourable outcome (getting 4 at first throw) = 0
Probability = 2/10 = 1/5.
Tricks and Tips of CAT permutations and combinations, probability
Learn Algebra of Events
(i) A ∪ B is the event that either A or B or Both occur. (i.e., at least one of A or B occurs)
(ii) A ∩ B is the event that both A and B occur
(iii) is the event that A does not occur
(iv) is the event that none of A and B occurs
P(S) = 1
0 ≤ P (E) ≤ 1
P(ϕ) = 0 (∵ Probability of occurrence of an impossible event = 0)
Let x outcomes be favourable to E and y outcomes are not favourable to E, then
Odds in favour of E are x:y, i.e.,x/y and
Odds against E are y:x, i.e.y/x
PE=x/x+y
PE'=y/x+y
Learn Conditional Probability.
Binomial Distribution:”
P (r successes in n trials) =
If n fair coins are tossed,
The Total number of outcomes in the sample space = 2n
The probability of getting exactly the r-number of heads when n coins are tossed =
Practice sample papers and questions based on previous years CAT Questions.
Solve Questions from easy to moderate levels and after that try hard questions.
Know this before probability permutations and combinations
Factorial
Basics of Set Theory
CAT study material: References to Study (Theory)
For probability problems and concepts
NCERT Class 11 Maths
Mission CAT (YouTube, Link: https://www.youtube.com/watch?v=99zr_7OogIM)
CAT study material: References to Practice probability questions
How to prepare quantitative Aptitude for CAT by Arun Sharma.
CAT Funda (CAT PYQs; YouTube:://www.youtube.com/watch?v=nTqInfzG5yw)
CAT probability questions with solutions pdf.
CAT 2024 Syllabus Topic: Strategy to prepare “Data Sufficiency in LR (Part-1)” for CAT
CAT Exam: About Topic/ Formulas
While the genre of Data Sufficiency is unique, the structure is not – all Data Sufficiency questions are structured the same, with three key elements:
The question stem: may or may not contain important facts
The statements: always two statements
The answer choices: always the same.
Sample Question based on PYQs on Data Questions for CAT/ MBA Entrance Exam:
Q1. In a particular school, sixty students were athletes. Ten among them were also among the top academic performers. How many top academic performers were in the school?
I. Sixty per cent of the top academic performers were not athletes.
II. All the top academic performers were not necessarily athletes. [CAT 2007]
Statement I alone is sufficient to answer this question but statement II is not sufficient to answer this question.
Statement II alone is sufficient to answer this question but statement I is not sufficient to answer this question.
None is sufficient to answer this question.
Both statements together are sufficient to answer this question.
Solution: [A]
Statement I: 40% of top academic performers are athletes = 10.
Statement II: does not provide any relevant information.
So the answer is (1).
Tips and Tricks for CAT 2024
Ask yourself the following questions (starting with the statement (1):
Is the information in the statement (1) alone enough to answer the question?
Is the information in a statement (2) alone enough to answer the question?
Can an answer be given if with the information from statements (1) and (2) both?
A statement is sufficient when it guarantees exactly one (and only one) answer to the question.
You do not have sufficient information if more than one answer is possible
Do not solve the question after the moment you know the unique answer can be found thereafter.
If the answer from one statement alone and by combining both statements can be found out then the answer will be from one statement alone.
Stick to the basics.
CAT entrance exam: Prerequisite
Direction Sense, Ranking , Coding-Decoding, Inequality , Cubes, and various other basic topics of Logical Reasoning .
References to CAT Study (Theory)
LRDI byNikhil K. Sinha
(YouTube link: https://www.youtube.com/watch?v=Fw6oK3aWuXw)
CAT References to Study (Practice)
Verbal and Non-Verbal Reasoning by R S Agrawal.
MBA Entrance Previous years Papers and Sample Papers.
https://www.youtube.com/watch?v=blkzss4S0-0
Sample Questions:
Directions: Choose a similar word from the given options for highlighted phrase/word.
Q1. Public policy in regard to food in main economies around the world has not provided adequate incentive, and the response to emergencies like accidents is equally sad.
Acceleration
Surplus
Baiting
Encouragement
Ans: D
Explanation: The context of the sentence refers to Encouragement. Hence option D is correct.
Q2. We today can see a swing away from these stereotypes, or have they established a stranglehold on our perceptions.
Asphyxiation
Containment
Prohibiting entry
Overwhelming control
Ans: D
Explanation: Asphyxiation- it happens when someone is literally strangled. And here the context is different.
Containment: it cannot be established and hence can be eliminated.
It does not seem appropriate here.
Prohibiting entry is for physical context and not for abstract. Hence can be eliminated.
Overwhelming control is a perfect fit here. Hence option D is correct.
One needs to be careful about the context.
Every word in the English language has a lot of different meanings.
To learn synonyms one can create word families
Beautiful- Gorgeous, Dazzling, Splendid, Magnificent
Important- necessary, vital, critical, Indispensable
One can also take reference from root words.
One can learn synonyms by logically associating a word with a sentence or a situation.
One needs to carefully observe the sentence's meaning as a whole.
Another method is to eliminate the other options.
Practise more and more exercises.
Prerequisite to CAT Exam Preparation
Vocabulary
Parts of Speech
References to Study (Theory)
Wren and Martin
Made Word Power Easy
CATking.in (https://www.youtube.com/watch?v=qXw3syyd_Ak)
CAT preparation: References to Study (Practice)
Big Book of Synonyms and Antonyms – English (Maple Press)
CAT Previous years Papers and other MBA Entrance Exams.
CATKing.in (YouTube; Link: https://www.youtube.com/watch?v=qXw3syyd_Ak&t=6s )
We will be back with Day 40 tomorrow. Do practice and be focused.
Thank you! All the best!
On average, in the quantitative aptitude section of the CAT exam, you might expect to see around 2 to 4 questions related to probability. This is a rough estimate based on historical data up until 2024.
Hi aspirant,
You can refer to the link attached above for more information on the same.
All the best!
Hi aspirant,
You can refer to the link given above for more information on the same.
All the best!
Hello dear,
The CAT exam requires a significant amount of time for preparation, including brushing up on basic concepts and practicing advanced problem-solving. Starting too early can feel overwhelming and may not be sustainable with other academic commitments.
The CAT exam requires a level of focus and maturity that is not always present in class 9. Starting preparation at this stage can be challenging to maintain. At class 9, you're primarily focused on learning foundational concepts. So you just need to boost your fundamentals by practicing more and more at class 9 because the Quantitative Aptitude section of CAT syllabus includes all the topics of Mathematics from Class 9 to 10 such as Arithmetic, Geometry, Algebra, Trigonometry and Mensuration.
Start Preparation 12 Months Prior:
Identify Weak Sections:
I hope you got your answer, That's all Thank you.
IIFT CAT Cutoff 2024
IIFT Delhi
General: 95–98 percentile
OBC: 90+
SC: 85–95
ST/PwD: 75–93
IIFT Kolkata
General: 85–95 percentile
OBC/SC/ST: 50–95 (varies)
Note: Final selection also includes WAT, GD, PI, academics, and work experience.
To prepare for CDS, CGL, and CAT during graduation, create a clear study schedule focusing on basics, reasoning, and aptitude. Practice daily mocks, improve time management, and stay consistent. Balance college and preparation with discipline and regular revision.
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