The lifeguards at the beach post information of surfers 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?A. 24B. 210C. 336D. 343
The flags to be chosen are 3. The total number of flags is 8. Since the flags are different, the position is important. We woud apply permutation. Thus, the number of possible signals can be flown is
