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Quantitative Aptitude

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Permutation, Combination & Probability

Question
12 out of 29
 

There are 7 men and 8 women. In the club a committee is formed using these person what will be the way to select.


If from each of the three boxes containing 3 white and 1 black, 2 white and 2 black, 1 white and 3 black balls, one ball is drawn at random, then the probability that 2 white and 1 black ball will be drawn is



A . 13/32
B . ¼
C 1/32
D . 3/16
E None of these

Ans. A Box A contains 3 white and 1 black

Box B contains 2 white and 2 black

Box C contains 1 white and 3 black

So WWB, WBW, BWW

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Permutation, Combination & Probability Flashcard List

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