i need with statistics

Question

Serial numbers for a product are to be made using 2

letters followed by 3

digits. The letters are to be taken from the first 5

letters of the alphabet, with no repeats. The digits are taken from the 10

digits 0, 1, 2, ..., 9

, with no repeats. How many serial numbers can be generated?

and can you break down the problem for me thank you

Answer 1

A picture of this problem might look like this:

So the total number of possible serial numbers would be 5•4•10•9•8 = 14,400