Small Quiz

3

QUESTION 1

There are 9 red, 7 white and 4 black balls in an urn.

 Two balls are drawn at random from the urn. What will be

the probability that both the balls are red ?

17/99

18/95

16/95

17/95

16/93

QUESTION 2

 

A bucket contains 8 red, 3 blue and 5 green marbles.

If 3 marbles are drawn at random, what is the probability

that none is red ?

1/17

1/15

1/10

1/20

1/5

QUESTION 3

A bag contains 13 white and 7 black balls. Two balls are

drawn at random. What is the probability that they are of

the same colour ?

99/190

100/190

98/190

97/191

1/2

QUESTION 4

A bucket contains 8 red, 3 blue and 5 green marbles.

If 4 marbles are drawn at random, what is the probability

that 2 are red and 2 are blue ?

3/85

3/65

3/55

3/45

3/78

QUESTION 5

There are 9 red, 7 white and 4 black balls in an urn.

If two balls are selected at ran-dom what is the probability

that one ball is white and the other ball is red ?

63/ 172

63/ 195

63/ 191

63/ 170

63/ 190

QUESTION 6

There are 8 brown balls, 4 orange balls and 5 black balls in a

bag. Five balls are chosen at random. What is the probability

of their being 2 brown balls, 1 orange ball and 2 black balls?

180 /1547

380 /1547

280 /1557

280 /1547

280 /1546

QUESTION 7

A box contains 2 blue, 3 green and 5 red balls. If three balls

are drawn at random, what is the probability that all balls are

different in color?

1/8

1/7

1/4

1/6

1/5

QUESTION 8

A box contains 5 green, 4 yellow and 3 white marbles. Three

marbles are drawn at random. What is the probability that

they are not of the same colour ?

41/87

41/49

41/47

41/44

41/43

QUESTION 9

 From a pack of 52 cards, 3 cards are drawn together at random,

What is the probability of both the cards are king ?

1/5524

1/5525

1/5523

2/5525

1/5526

QUESTION 10

From a group of 4 men ,3 women, 2 persons are selected at

random, Find the probability at least one man is selected ?

2/7

3/7

5/7

4/7

6 / 7