Question

How many 5-digit ZIP codes are possible if the first number cannot be 0?

A. 90,000
B. 5,040
C. 11,500
D. 30,240

Answer 1

You can find it by multiplying the number of options for each digit. The first digit had 9 possible values, while the second, third, fourth, and fifth have 10 possible values each

So the total would be 9*10*10*10*10

Answer 2

Sorry, I took long. I was gone while you replied. thanks alot for explaining!