Problems On Probability-3
.
- 1.
What is the probability that a leap year has 53 Mondays and 52 Tuesdays?
- A.
0
- B.
1/7
- C.
2/7
- D.
5/7
Correct Answer
B. 1/7 -
- 2.
11 registers are placed at random in a shelf. The probability that a pair of registers will always be together is ________.
- A.
1/10
- B.
9/10
- C.
2/11
- D.
3/10
Correct Answer
C. 2/11 -
- 3.
The probability that A speaks truth is 7/9 and that of B speaking truth is 5/8. What is the probability that they agree in stating the same fact?
- A.
41/72
- B.
12/35
- C.
17/35
- D.
19/35
Correct Answer
A. 41/72 -
- 4.
Out of 7 persons working on a project, 3 are post graduates. If 2 are selected, what is the probability that there is at least one post graduate among them?
- A.
1/6
- B.
5/8
- C.
3/8
- D.
5/7
Correct Answer
D. 5/7 -
- 5.
From a pack of cards two cards are drawn at same time. The probability that the two cards are of same colour is?
- A.
14/51
- B.
15/51
- C.
16/51
- D.
None of these
Correct Answer
D. None of these -
- 6.
In a pub there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at least two couples?
- A.
5/21
- B.
5/18
- C.
9/16
- D.
16/27
Correct Answer
A. 5/21 -
- 7.
A card is drawn from a well shuffled pack of cards, the probability of drawing a diamond or a queen is ?
- A.
17/52
- B.
15/52
- C.
4/13
- D.
9/26
Correct Answer
C. 4/13 -
- 8.
If three coins are tossed, the probability of getting two heads and one tail is?
- A.
5/8
- B.
3/8
- C.
1/4
- D.
3/4
Correct Answer
B. 3/8 -
- 9.
If five person sit in a row, then the probability that two persons always sit together is__
- A.
2/5
- B.
3/5
- C.
4/5
- D.
1/5
Correct Answer
B. 3/5 -
- 10.
A coin tossed thrice. What is the probability that there is at least one tail ?
- A.
1/8
- B.
7/8
- C.
3/8
- D.
5/8
Correct Answer
B. 7/8 -
- 11.
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
- A.
8/36
- B.
3/74
- C.
7/58
- D.
9/20
Correct Answer
D. 9/20 -
- 12.
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
- A.
10/21
- B.
11/21
- C.
7/89
- D.
5/93
Correct Answer
A. 10/21 -
- 13.
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
- A.
1/3
- B.
3/4
- C.
2/5
- D.
7/6
Correct Answer
A. 1/3 -
- 14.
What is the probability of getting a sum 9 from two throws of a dice?
- A.
1/6
- B.
1/8
- C.
1/9
- D.
1/15
Correct Answer
C. 1/9 -
- 15.
From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
- A.
1/15
- B.
25/57
- C.
35/256
- D.
1/221
Correct Answer
D. 1/221 -
- 16.
Three unbiased coins are tossed. What is the probability of getting at most two heads?
- A.
3/4
- B.
1/4
- C.
3/8
- D.
7/8
Correct Answer
D. 7/8 -
- 17.
Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
- A.
1/2
- B.
3/4
- C.
3/8
- D.
5/16
Correct Answer
B. 3/4 -
- 18.
In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is:
- A.
21/46
- B.
25/117
- C.
1/50
- D.
3/25
Correct Answer
A. 21/46 -
- 19.
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
Correct Answer
C. 2/7 -
- 20.
Two dice are tossed. The probability that the total score is a prime number is:
- A.
1/6
- B.
5/12
- C.
4/9
- D.
2/5
Correct Answer
B. 5/12 -
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Apr 13, 2016Quiz Edited by
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Apr 13, 2016Quiz Created by
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