A department store wants to send codes for 15 off a 75

Last updated: 5/19/2023

A department store wants to send codes for 15 off a 75 purchase to the subscribers of its e mail list The coupon code will have three letters followed by one digit followed by one letter The letters P Q and R will not be used So there are 23 letters and 10 digits that will be used Assume that the letters can be repeated How many such coupon codes can be generated