Question

A factory worker packing boxes with supplies is able to make 4 boxes every 5 minutes before lunch. After lunch the factory worker can make 2 boxes every 3 minutes.

What is the difference in boxes per hour he can make before lunch vs. after lunch?
Responses

40

Answer 1

8

Explanation:

Before lunch:

4 boxes ×(60 ÷ 5) times=48 boxes

After lunch:

2 boxes ×(60 ÷ 3) times=40 boxes

Different=48-40=8 boxes

*for 60 ÷ 5 times and 60 ÷ 3 times you can know as how many time the worker can do in 1 hour

Hope that can help you~