If 6 spikers, 4 setters and 4 spotters are looking for placement. How many different teams can be assembled?

Question

A certain volleyball team consists of 4 spikers, 2 setters and 4 spotters.

Answer 1

Spikers. You choose 4 out of 6 of them, meaning 2 are left out.
Choose the first to be left out: 6
Choose the 2nd to be left out from the 5 remaining. 5
30 possibilites. But choosing person A then B, is the same as B then A, so that means 30 / 2= 15 different ways of choosing spikers

Setters: Once again choose 2 of them. First:4
2nd from the 3 remaining: 3
Divide by 2 again: 4*3 /2 = 6 different ways of choosing setters

Spotters: We must take all of them. 1 way

15*6 = 90 different teams that can be assembled.