Question

In how many ways can 8 boys and 5 girls be assigned seats in a row containing 13 seats if:

1) There are no restrictions.
2) The girls must be seated in the first 5 seats.
3) Thomas must be seated in the first seat and Jacob must be seated in the last seat.

First things first --- do I use the permutation?
1) prob of girls x prob of boys? p(5,5) * p(8,8)
2) G G G G G B B B B B B B B
p(5,5)* p(8,8)
3) B G G G G G G G G G G G B
p (2,2) * p(11,11)
11 girls in between and 2 boys

Answer 1

Hello Nala,

I was wondering if you did AP CHem through apex learning because I need help and was wondering if you have materials.

Thanks