Question

out of five boys and two girls , a group of 4 is to be selected. If group contains three boys and one girl then the no of ways to select the group is​

Answer 1

Answer:

let boys be A B C D E

let girls be a b

so no. of ways are

A B C a

B C D a

C D E a

D E A a

E A B a

no. of possibilities=5 same goes for second girl b so total ways =10