Question

A factory can make 120 backpacks in 3 hours.

How long would it take to make 600 backpacks?

A.
15 h

B.
20 h

C.
30 h

D.
40 h

Answer 1

The answer is A. Do you want me to explain?

Answer 2

Yes please

Answer 3

Okay since it takes 3 hours to make 120 backpacks we want to figure out first how many backpacks are made in one hour. To do that you have to take 120 and divide that by 3 and then you get 40 which means that 40 backpacks are made in 1 hour. So then all you do is take 600 and divide that by 40 and you get that you can make 600 bags in 15 hours.