# Quantitative Aptitude: Probability Set 1

- From a pack of 52 cards, 1 card is chosen at random. What is the probability of the card being diamond or queen?

A) 2/7

B) 6/15

C) 4/13

D) 1/8

E) 17/52

- From a pack of 52 cards, 1 card is drawn at random. What is the probability of the card being red or ace?

A) 5/18

B) 7/13

C) 15/26

D) 9/13

E) 17/26

- There are 250 tickets in an urn numbered 1 to 250. One ticket is chosen at random. What is the probability of it being a number containing a multiple of 3 or 8?

A) 52/125

B) 53/250

C) 67/125

D) 101/250

E) 13/25

- There are 4 white balls, 5 blue balls and 3 green balls in a box. 2 balls are chosen at random. What is the probability of both balls being non-blue?

A) 23/66

B) 5/18

C) 8/21

D) 7/22

E) 1/3

- There are 4 white balls, 3 blue balls and 5 green balls in a box. 2 balls are chosen at random. What is the probability that first ball is green and second ball is white or green in color?

A) 1/3

B) 5/18

C) 1/2

D) 4/21

E) 11/18

- 2 dices are thrown. What is the probability that there is a total of 7 on the dices?

A) 1/3

B) 2/7

C) 1/6

D) 5/36

E) 7/36

- 2 dices are thrown. What is the probability that sum of numbers on the two dices is a multiple of 5?

A) 5/6

B) 5/36

C) 1/9

D) 1/6

E) 7/36

- There are 25 tickets in a box numbered 1 to 25. 2 tickets are drawn at random. What is the probability of the first ticket being a multiple of 5 and second ticket being a multiple of 3.

A) 5/11

B) 1/4

C) 2/11

D) 1/8

E) 3/14

- What is the probability of selecting a two digit number at random such that it is a multiple of 2 but not a multiple of 14?

A) 17/60

B) 11/27

C) 13/30

D) 31/60

E) 17/30

- There are 2 urns. 1st urn contains 6 white and 6 blue balls. 2nd urn contains 5 white and 7 black balls. One ball is taken at random from first urn and put to second urn without noticing its color. Now a ball is chosen at random from 2nd urn. What is the probability of the second ball being a white colored ball?

A) 11/13

B) 6/13

C) 5/13

D) 5/12

E) 11/12