Question

9. In the United States, radio and television stations use four call letters, the first one is either a K or W. How many different call letters with four letters are possible? (For the second, third, and fourth call letter, 26 different letters could be used in each.)

Answer 1

@jigglypuff314 Not sure how to do this. Could you help me out?

Answer 2

Nevermind I got it! 4-letter permutations:
= 2x26x26x26 = 35152