Answer:
6
Explanation:
- if he put 18 strawberries in each box, He would have 111 extra
- if he put 25 strawberries in each box, He would be short 162
this should be more than 111 but less than 162.
162/25= 6 12/25
111/18= 6 3/111
So the amount that should fit should be 6.