Probability Aptitude Questions and Answers | MCQ Problems

2022-02-09

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Probability Aptitude Questions and Answers | MCQ Problems: Now, follow this article, and you will get the answer to most of the questions like Probability Aptitude Tricks, Probability Aptitude Questions and Answers PDF, Probability Exam Questions and Answers, Probability Questions and Answers, Hard Probability Questions, Probability Problems for Aptitude with Solutions, Probability Aptitude Formulas, etc..,. Now, the Test we are providing is completely free. So, all the aspirants who want to brace and get a good score in this area can work hard with the help we are providing on this page.

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Table of Contents

Probability Aptitude Questions and Answers | MCQ Problems

Quiz Name	Probability
Category	Aptitude
Number of Questions	25
Time	30 Minutes
Exam Type	MCQ (Multiple Choice Questions)

Probability Online Test – Practice Now

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a. 6/11
b. 8/15
c. 11/15
d. 7/15
e. 9/11

Answer: d

Explanation:

a. 7/38
b. 65/153
c. 61/153
d. 55/117
e. 42/119

Answer: b

Explanation:

a. 79/1326
b. 1/17
c. None of these
d. 69/221
e. 14/221

Answer: a

Explanation:

a. 53/104
b. 47/104
c. 63/104
d. 51/104
e. 59/104

Answer: a

Explanation:

• 2:9
• 3:7
• 4:5
• 1:9
• 1:10

Answer: e

Explanation:

P(Both of them will be selected) = P(A)P(B) = (1/7) × (1/5) = 1/35
P(only one of them will be selected) =
P(A and not B) or P(B and not A) = (1/7)(4/5) + (1/5)(6/7) = 2/7
Therefore required ratio = (1/35) : (2/7) = 1 : 10

6. Find the probability that a two-digit number, chosen at random, is a multiple of 4 & also a multiple of 6.

a. 8/15
b. 9/13
c. 7/14
d. 6/13
e. None of these

Answer: e

Explanation:

Number of two-digit numbers = 90 (from 10 to 99)
The number is divisible by both 4 and 6, i.e it is divisible by L.C.M of 4 and 6 which is 12.
The two-digit numbers divisible by 12 are 12, 24, 36, 48, 60, 72, 84 and 96. Thus, there are total of 8 such numbers.
Required Probability = 8/90 = 4/45

7. Determine the probability that a digit chosen at random from the digits 1, 2, 3, …12 will be odd.

a. 1/2
b. 1/9
c. 5/9
d. 4/9
e. None of these

Answer: a

Explanation:

Total no. of Digits = 12. Equally likely cases = 12.
There are six odd digits. Probability = 6 / 12 = 1 / 2

8. In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

a. 1/10
b. 2/5
c. 2/7
d. 5/7
e. None of these

Answer: c

Explanation:

The probability of getting a prize in the lottery can be calculated as follows:

Total number of outcomes = number of prizes + number of blanks = 10 + 25 = 35

Number of favorable outcomes (i.e., getting a prize) = 10

Probability of getting a prize = number of favorable outcomes / total number of outcomes = 10/35 = 2/7

9. A box contains 5 white balls, 6 violet balls and 3 yellow balls. If 2 balls are drawn randomly, then the probability of getting both the balls are either white or violet balls?

a. 11/56
b. 23/72
c. 35/83
d. 25/91
e. None

Answer: d

Explanation:

10. A box contains 4 white, 6 green, 2 red and 5 yellow pens.
If 4 pens are picked at random, what is the probability that one of them is green, 2 are white and 1 is yellow?

a. 3/169
b. 1/13
c. 9/13
d. 9/169
e. None

Answer: e

Explanation:

Read probability p(E) = n(E)/n(S)

11. A bag contains 5 red, 6 blue and some yellow balls. Probability of drawing one red ball from the bag is 1/3. Three balls are drawn at random. Find the probability that all the balls are of same color?

a. 29/413
b. 34/455
c. 31/451
d. 37/453
e. None

Answer: b

Explanation:

Red = 5
Blue = 6
Let, yellow = n
Total number of balls = 5 + 6 + n = (11 + n)
According to the question
5/(11 + n) = 1/3
= > 15 = 11 + n
= > n = 15 – 11
= > n = 4

12. A man and his wife appear in an interview for two vacancies in the same post. The probability of husband’s selection is (1/7) and the probability of wife’s selection is (1/5). What is the probability that only one of them is selected?

a. 2/7
b. 1/7
c. 3/4
d. 4/5
e. None

Answer: a

Explanation:

13. There are three identical boxes, A, B, and C. Box A contains 3 red balls and 2 blue balls. Box B contains 2 red and 5 blue balls and Box C contains 2 blue, 1 red and 1 white ball. One ball is drawn from one of the boxes at random.
Find the probability that it is red.

a. 53/70
b. 53/140
c. 3/70
d. 7/19
e. None

Answer: b

Explanation:

The ball is drawn from box A or Box B or Box C.

The probability that a ball drawn from Box A is red is 3/5.

The probability that a ball drawn from box B is red is 2/7

The probability that a ball drawn from box C is red is 1/4

Probability of selecting any one of the three boxes = 1/3

∴ Probability that the ball is red is
1/3(3/5+2/7+1/4)=53/140
Hence, option B is correct.

14. A box contains 3 apples and 2 Oranges. If two fruits are picked at random, then what is the probability that is at least one apple in the drawn fruits?

a. 9/10
b. 4/5
c. 7/10
d. 3/5
e. None

Answer: a

Explanation:

15. One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?

a. 3/13
b. 1/13
c. 3/52
d. 9/52
e. None

Answer: a

Explanation:

There are 52 cards, out of which there are 12 face cards.
P (getting a face card) = 12/52=3/13.

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Probability Aptitude MCQ Problems

Are you practicing the Probability Topic for a while now? Yet not able to ace the topics? then here is a quick tip for you. Well, first focus on the Formulas. And then proceed to check the Question. Analyze it. Then apply the appropriate formula to it. You are good to get it. Now, the real trick is to memorize the Formula. So, check them. We might hear from the candidates who are preparing for the Exams like the SSC, UPSC, PSC, Banks, Police, Railways, IT Companies, Competetive Exams, Entrance tests that they are facing a lot of troubles while solving the Probability Section in Aptitude. Now, to give the answer to all such aspirants, here we are providing a helpful source. Check it out and use it.

Probability Quiz Questions in Aptitude

Along with the Question here in this quiz, you will also find the necessary help to get the Explanation too. So, check it out. Therefore, you will get the correct concept. Now, another added benefit here is that you can take the Quiz as many times as you can to do so. Therefore, practice well, until you get the real concept. Now, along with that, the contenders should also know the formulas too. Then only they will get to know where to use the correct one. So, please keep this in mind and then proceed. Now, here we are giving the quiz in the form of multiple choice questions.

So, our team from Freshersnow.com hope that the contenders are happy with the probability quiz provided on this page. For, more useful updates and notifications, check our site at regular intervals. Also, on our site, you can find more other topics in the Aptitude section too. Therefore, check them also. And apart from that comment and ask us if you want to get the details about any other Aptitude related topic. We will get them for you. Until then practice well !!

Probability Aptitude Questions and Answers | MCQ Problems

Probability Aptitude Questions and Answers | MCQ Problems

Probability Online Test – Practice Now

Probability Aptitude MCQ Problems

Probability Quiz Questions in Aptitude

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