In how many ways can 3 seats be occupied if 5 people are willing to sit?

In how many ways can 3 seats be occupied if 5 people are willing to sit?

Answer Details

5 people can take 3 places in;
5P3 ways, = $\frac{5!}{(5-3)!}$ = $\frac{5!}{2!}$
= $\frac{5\times 4\times 3\times 2!}{2!}$
= 5 x 4 x 3
= 60 ways