# In a Family of 3 Children, the Probability of Having at Least One Boy is - Mathematics

In a family of 3 children, the probability of having at least one boy is

(A)7/8

(B)1/8

(C)5/8

(D)3/4

#### Solution

There are in all 23 = 8 combinations or outcomes for the gender of the 3 children
The eight combinations are as follows
BBB, BBG, BGB, BGG, GBB, GBG, GGB, GGG
Thus the probability of having at least one boy in a family is 7/8

Concept: Basic Ideas of Probability
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