Last week, Ms. Simpson worked 28 hours. She stocked shelves for 45 minutes each hour for 14 of those hours. The rest of the time she worked in customer service. How many minutes last week did Ms. Simpson work in customer service?

(Hint: There are 60 minutes in an hour)



Answer :

45 x 14 = 630
She worked 630 minutes stocking shelves, which equals 10 hours and 30 minutes.
After that she worked another 17 hours and 30 minutes in customer service.
17 x 60 = 1020
1020 + 30 = 1050
Ms. Simpson worked 1050 minutes in customer service.
28 x 60=1680 minutes
45 x 14=630
1680-630=1050 minutes in customer service