A bank requires that its customers create a PIN to access their accounts. The PIN must be 2 letters followed by 2 numbers. How many unique PINs are there?

Question

Probability

Answer 1

we have a combination of 26 x 26 letters followed by a combination of two numbers from 00 to 99, 100

numbers in total. The unique pins will be so many as the existing combinations of letters and numbers

together. It will be 26^2 x 10^2 = 676 x 100 = 67600 pins