Question

Jeff works in a factory that makes car parts. Jeff can make 7 car parts every twenty minutes. Jeff will start work at ten o’clock in the morning and not stop working until he has made a total of 56 car parts. At what time will Jeff have made a total of 56 car parts?

Answer 1

5:00

Explanation:

If the number of parts made increases by 7 every hour and Jeff starts at 10:00, then

10:00 - 7 pts

11:00 - 14 pts

12:00 - 21 pts

1:00 - 28 pts

2:00 - 35 pts

3:00 - 42 pts

4:00 - 49 pts

5:00 - 56 pts

Answer 2

Jeff will have worked 8 hours and left work at 6:00PM