Solve the problem.
-How many different 4-letter radio-station call letters can be made if the first letter must be K or W, repeats are allowed, but the call letters cannot end in an O?
A)35,152
B)456,976
C)33,800
D)16,900

Question

Quizplus · Accepted Answer

The first letter has 2 choices (K or W), the next two letters have 26 choices each (A-Z), and the last letter has 25 choices (A-Z except O). So, the total number of combinations is 2 * 26 * 26 * 25 = 33,800.

Solve the Problem. -How Many Different 4-Letter Radio-Station Call Letters Can Be Made