Question

A homeowner puts a passcode-enabled lock on her front door. To choose a passcode, she must choose a number, a letter from a list of 5 letters, and then another number.

Number Letter Number
0 A 0
1 E 1
2 I 2
3 O 3
4 U 4
5 5
6 6
7 7
8 8
9 9
How many possible passcodes can she make?

Answer 1

500

Explanation:

I assume each number is from 0 to 9. Also there are 5 letters.

10 * 5 * 10 = 500