A 9 passenger van shuttles athletes between venues at the canada summer games. If 22 athletes need to get to the track and field stadium, in how many ways can passengers be chosen for

Question

A) the bus’s first trip?
B) the bus’s second trip?

Combinations

Answer 1

A) The bus's first trip can be chosen in $\binom{22}{9}$ ways.

B) The bus's second trip can be chosen in $\binom{13}{9}$ ways.