Question: Ben works 8-hour shifts in a furniture shop.  It takes him 5 hours to build 1 rocking chair.  How many chairs can he build in 10 days?
Solution:
He works 8 hours a day for 10 days means he works 8*10 = 80 hours
It takes him 5 hours to build one rocking chair so over 80 hours he builds 80/5 = 16 rocking chairs
Answer: 16