Solve.
-A signal is made by placing 3 flags, one above the other, on a flag pole. If there are 9 different flags available, how many possible signals can be flown?
A) 84
B) 504
C) 27
D) 729

Question

Quizplus · Accepted Answer

This is a permutation problem because the order in which the flags are placed matters. With 9 flags to choose from for the first position, 8 for the second (since one has already been used), and 7 for the third, the total number of possible signals is 9 * 8 * 7 = 504.

Solve. -A Signal Is Made by Placing 3 Flags, One Above