Question

A lock on a bank vault consists of 5 dials, each of which has 25 positions. In order for the vault to open, each of the 5 dials must be in the correct position. How many possible dial codes are there for this lock

Answer 1

There 25 possible positions for each dial. Multiply the number of each dial by each other:

25 x 25 x 25 x 25 x 25 = 9,765,625 possible combinations.