Question

You have 1 case of soap bars and there are 150 bars in a case. You use 300 bars of soap per day. How many cases do you need to order to have enough for 7 days?*

Answer 1

You need 2 cases per day because 1 case = 150 bars , 2 cases = 300

Multiply 2 x 7 for 7 days

14 cases of soap bar for 7 days.

Answer 2

1 day=2 cases 
2 days=4 cases
3 days=6 cases
4 days=8 cases
5 days=10 cases
6 days=12 cases
7 days=14 cases