Probability Test - 4

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Probability Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

A bag contains 6 white and 4 black balls. A man pulls out 2 balls at random. The probability that they are of the same colour is

A
7/15

B
2/45

C
1/12

D
None of these
Question 2
1 / -0

The probability of having 53 Mondays in a year is

A
2/7

B
3/7

C
1/7

D
None of these
Question 3
1 / -0

The probability that a card drawn from a pack of 52 cards will be a diamond or a king is

A
1/52

B
2/13

C
4/13

D
1/13
Question 4
1 / -0

A natural number is chosen at random from among the first 500. The probability of it being divisible by 3 or 5 is

A
1/5

B
33/500

C
83/250

D
233/500
Question 5
1 / -0

Three dice are thrown together. The probability of getting a total of at least 6 is

A
5/108

B
103/108

C
1/36

D
None of these
Question 6
1 / -0

The probability of getting more than seven when a pair of dice is thrown is

A
7/36

B
5/12

C
7/12

D
None of these
Question 7
1 / -0

A card is drawn at random from a pack of 52 cards. The probability of getting a red card or an ace is

A
1/3

B
1/2

C
15/26

D
7/13
Question 8
1 / -0

If a fair coin is tossed twice, what is the probability of getting heads in both the trials?

A
1/4

B
1/2

C
3/4

D
1
Question 9
1 / -0

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
1/50

B
25/117

C
21/46

D
None of these
Question 10
1 / -0

A bag contains 9 red and 6 white balls. Three balls are drawn at random. The probability that one ball is red and two balls are white is

A
27/91

B
1/18

C
1/27

D
1/13
Question 11
1 / -0

A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is

A
12/19

B
7/19

C
91/95

D
None of these
Question 12
1 / -0

Tickets numbered from 1 to 25 are mixed up together and a ticket is drawn at random. What is the probability that the drawn ticket has a prime number?

A
2/5

B
7/25

C
9/25

D
11/25
Question 13
1 / -0

A card is drawn from a well-shuffled pack of 52 cards. The probability of getting a queen of club or king of heart is

A
1/13

B
1/52

C
1/26

D
None of these
Question 14
1 / -0

A bag contains 8 white and 5 red balls. Three balls are drawn at random. What is the probability that all the drawn balls are white?

A
8/39

B
28/143

C
1/15

D
None of these
Question 15
1 / -0

The probability that a leap year selected at random will contain 53 Sundays is

A
1/7

B
2/7

C
7/366

D
26/183
Question 16
1 / -0

In a lottery of 50 tickets numbered 1 to 50, two tickets are drawn simultaneously. The probability that both the tickets drawn have prime numbers is

A
3/245

B
21/245

C
3/25

D
7/245
Question 17
1 / -0

Four cards are drawn at random from a pack of 52 cards. The probability of getting all the four cards of the same number is

A
13/270725

B
1/13

C
1/4

D
None of these
Question 18
1 / -0

N cadets have to stand in a row. If all possible permutations are equally likely, the probability of two particular cadets standing side by side is

A
4/N

B
3/N²

C
1/2N

D
2/N
Question 19
1 / -0

A bag contains 10 white, 4 green balls. One ball is drawn at random. The probability that it is white is

A
7/5

B
4/7

C
2/3

D
5/7
Question 20
1 / -0

In a simultaneous throw of two dice, the probability of getting a total of 7 is

A
1/7

B
7/36

C
1/4

D
1/6
Question 21
1 / -0

Two cards are drawn from a pack. The probability of getting a king and a queen is

A
8/666

B
4/663

C
2/663

D
None of these
Question 22
1 / -0

Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random. What is the probability that the drawn ticket has a number which is a multiple of 3 or 7?

A
2/5

B
13/20

C
7/20

D
3/20
Question 23
1 / -0

A bag contains 6 black, 9 white and 5 red balls. Three balls are drawn at random. What is the probability that the balls drawn are black?

A
1/6

B
1/15

C
2/5

D
None of these
Question 24
1 / -0

A pair of dice is thrown and the numbers appearing have sum greater than or equal to 10. The probability of getting a sum of 10 is

A
1/6

B
1/4

C
1/3

D
1/2
Question 25
1 / -0

In a collection of 6 Mathematics and 4 Physics books, the probability that 3 particular Mathematics books will be together, is

A
1/8

B
1/10

C
1/15

D
None of these

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Re-Attempt Weekly Quiz Competition

Probability Test - 4

Result

Probability Test - 4

Score

-

Rank

-

Question 1

7/15

2/45

1/12

None of these

Question 2

2/7

3/7

1/7

None of these

Question 3

1/52

2/13

4/13

1/13

Question 4

1/5

33/500

83/250

233/500

Question 5

5/108

103/108

1/36

None of these

Question 6

7/36

5/12

7/12

None of these

Question 7

1/3

1/2

15/26

7/13

Question 8

1/4

1/2

3/4

1

Question 9

1/50

25/117

21/46

None of these

Question 10

27/91

1/18

1/27

1/13

Question 11

12/19

7/19

91/95

None of these

Question 12

2/5

7/25

9/25

11/25

Question 13

1/13

1/52

1/26

None of these

Question 14

8/39

28/143

1/15

None of these

Question 15

1/7

2/7

3/N²