Question

Suppose that 3 boys and 2 girls go to the theater and occupy 5 seats in a row. In how many ways can they be seated if all 3 boys sit together?

3

6

12

36

Answer 1

think the 3 boys one as one group, say A
AGG
GAG
GGA

but the 3 boys can rearrange among themselves.
So 3! * 3 = 18

but right answer is not on the list :/