Question

There are 12 boys and 8 girls in a class, including a brother and a sister. If one boy and one girl are selected at random from the boys and girls respectively , what is the probability that the brother and sister are both selected?

Answer 1

Answer:

1/12 and 1/8

2/20

=1/10

Answer 2

Answer:

Here the sum of both girls and boys = 20

Girls = 8

Boys = 12

Probability --> 2/20 = 1/10