Question

A Store-It-All storage facility requires users to enter a four digit code, using numbers 0-9, to get through the gate. You need to get a box of winter clothes from your storage container, but you forgot the code.
How many possible codes are there if th digits cannot be repeated ?

What is the probability that you will guess the correct code on your first try ?

If the digits can be repeated , how many possible codes are there ?

Answer 1

Answer:

Copy all that then paste it to Google and there is a site that I found the answer on but I can't copy it it's to long.