Question

Jacob pent 1/5 of an hour cleaning the table and 3/10 of an hour mopping. After he finihed he pent 2/3 of an hour reading. How much more time did he pend reading than doing houework

Answer 1

10 minutes

Explanation:

You want to know how much longer 2/3 hour is than the sum of 1/5 hour and 3/10 hour.

Sum

Each fraction of an hour can be expressed in minutes:

• 2/3 h = 40 min
• 1/5 h = 12 min
• 3/10 h = 18 min

The time difference of interest is ...

(2/3 - 1/5 -3/10) h = (40 -12 -18) min = 10 min

Jacob spent 10 minutes more reading than doing housework.