Probability - Quantitative Aptitude (MCQ) questions

1)   What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys?
- Published on 13 Apr 17

a. 1/21
b. 4/7
c. 2/7
d. 5/7
Answer  Explanation 

ANSWER: 5/7

Explanation:
probability


2)   What is probability of drawing two clubs from a well shuffled pack of 52 cards?
- Published on 13 Apr 17

a. 13/51
b. 1/17
c. 1/26
d. 13/17
Answer  Explanation 

ANSWER: 1/17

Explanation:
probability


3)   When two coins are tossed simultaneously, what are the chances of getting at least one tail?
- Published on 12 Apr 17

a. 3/4
b. 1/5
c. 4/5
d. 1/4
Answer  Explanation 

ANSWER: 3/4

Explanation:
probability


4)   In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?
- Published on 11 Apr 17

a. 4/11
b. 1
c. 2/33
d. 19/66
Answer  Explanation 

ANSWER: 19/66

Explanation:
probability


5)   In a drawer there are 5 black socks and 3 green socks. Two socks are picked randomly one after the other without replacement. What is the possibility that both the socks are black?
- Published on 11 Apr 17

a. 5/14
b. 5/8
c. 3/8
d. 5/16
Answer  Explanation 

ANSWER: 5/14

Explanation:
probability


6)   What is the possibility of having 53 Thursdays in a non-leap year?
- Published on 11 Apr 17

a. 6/7
b. 1/7
c. 1/365
d. 53/365
Answer  Explanation 

ANSWER: 1/7

Explanation:
probability


7)   A box has 5 black and 3 green shirts. One shirt is picked randomly and put in another box. The second box has 3 black and 5 green shirts. Now a shirt is picked from second box. What is the probability of it being a black shirt?
- Published on 11 Apr 17

a. 4/9
b. 29/72
c. 8/72
d. 3/16
Answer  Explanation 

ANSWER: 29/72

Explanation:
probability
probability


8)   On rolling a dice 2 times, the sum of 2 numbers that appear on the uppermost face is 8. What is the probability that the first throw of dice yields 4?
- Published on 27 Mar 17

a. 2/36
b. 1/36
c. 1/6
d. 1/5
Answer  Explanation 

ANSWER: 1/36

Explanation:
probability


9)   A box has 6 black, 4 red, 2 white and 3 blue shirts. What is probability of picking at least 1 red shirt in 4 shirts that are randomly picked?
- Published on 27 Mar 17

a. 4/15
b. 24/455
c. 69/91
d. 22/91
Answer  Explanation 

ANSWER: 69/91

Explanation:
probability


10)   A box has 6 black, 4 red, 2 white and 3 blue shirts. What is the probability that 2 red shirts and 1 blue shirt get chosen during a random selection of 3 shirts from the box?
- Published on 27 Mar 17

a. 18/455
b. 7/15
c. 7/435
d. 7/2730
Answer  Explanation 

ANSWER: 18/455

Explanation:
probability


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