A signal is made by placing 3 flags, one above the other, on a flag pole. If there are 8 different flags available, how many possible signals can be flown?

Question

A. 56

B. 336

C. 24

D. 512

Answer 1

There is a choice of 8 flags for the lowest position, a choice of 7 for the one above it and a choice of 6 for the top flag, making 8×7×6=336, answer B.

Answer 2

8C3 = 56

Combination since order doesn't matter