Tim owns rental properties. He decides to replace all the locks and needs to get 3 keys per lock. He owns two apartment complexes which each have 12 apartments. How many keys does he need to make?
Thoughts? Step-by-step reasoning:
User
There are 2 * 12 = 24 apartments he needs keys for. So he needs 24 * 3 = 72 keys.
Thus, the answer is 72.
Assistant