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11.

A bag contains 6 white^and 4 red balls. Three balls are drawn at random. What is the probability that one ball is red and the other two are white ?


A) 1/2

B) 1/12

C) 3/10

D) 7/12



12.

A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is :


A) 1/22

B) 3/22

C) 2/91

D) 2/77



13.

A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white ?


A) 3/4

B) 4/7

C) 1/8

D) 3/7



14.

Two cards are drawn from a pack of 52 cards. The probability that either both are red or both are kings, is :


A) 7/13

B) 3/26

C) 63/221

D) 55/221



15.

Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is :


A) 3/20

B) 29/34

C) 47/100

D) 13/102



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