Arithmetic Ability
 Probability

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Q.

Find the probability of selecting exactly 2 children when four persons are choosen at random from a group of 3 men, 2 woman and 4 children.

View Answer

Correct choice: B

Explanation:

4 persons can be selected from 9 in 9C4 ways =126 Fvaourable events =4C2*5C2 =60 So,required probability = 60/126 = 10/21
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