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? Let's think step by step and output the final answer after "####".
user
There are 2*12=<<2*12=24>>24 apartments he needs keys for
So he needs 24*3=<<24*3=72>>72 keys
#### 72
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?
train