Problem:
A warranty identification number for a certain product consists of a letter of the alphabet followed by a four digit number. How many possible identification numbers are there if the first digit of the four digit number must be non-zero?
a. 234, 000 numbers
b. 307, 000 numbers
c. 99, 000 numbers
d. 6, 000 numbers
e. 414, 000 numbers
f. 432, 000 numbers
Additional Information:
This question is from Mathematics as well as it is about determining the possible identification numbers, if the first digit of the four digit number is nonzero.