Use the multiplication principle to solve the problem.
-How many different 4 -letter radio station call letters can be made if repeats are allowed and the first letter must be $\mathrm{K}$.
A) 1000
B) 78
C) 17,576
D) 456,976

Question

Quizplus · Accepted Answer

The first letter is fixed as 'K', leaving 3 positions to be filled with any of the 26 letters of the alphabet. Since repeats are allowed, each of these 3 positions can be filled in 26 ways. Thus, the total number of combinations is $26^3 = 17,576$.

Use the Multiplication Principle to Solve the Problem K\mathrm{K}K A) 1000 B) 78 C) 17,576 D) 456,976

Use the Multiplication Principle to Solve the Problem $\mathrm{K}$
A) 1000
B) 78
C) 17,576
D) 456,976