From: Alejandra

I have a bike lock. It has three columns of the digets 1-9 and zero. I have forgotten the combination.
Three numbers need to be imputed. What are the possible lock cominations, so that i can try to break the lock?

Hello Alejandra,

Think about your question this way: How many three digit numbers are there? The answer is all the numbers from 000 to 999. That's the same number as the possible combinations on your lock.

Hope this helps,
Stephen La Rocque.