16/5 = 3.2 hours = 3hours 12minutes per day.Mary is not overworked.
13+13+13+13+13+13+13+13+13+13 = 13 * 10 = 130.
If in 10 hours, A can copy 50 papers, and A and B together can copy 70, then B must be copying 20 papers in 10 hours.This means B copies 2 papers per hour. 10 / 10 = 1 and 20 / 10 = 2If B copies 2 papers every hour, then it would take 13 hours for it to copy 26 papers.
28
Solved is the past tense of solve.
From 8am to 1pm is 5 hours. From 8am to 1am is 17 hours. From 8pm to 1am is 5 hours. From 8pm to 1pm is 17 hours.
1am to 8am is 7 hours.1am to 8pm is 19 hours.1pm to 8pm is 7 hours.1pm to 8am is 19 hours.
19 hours
9 hours
1am on the calendar day 2 ahead. So 28 hours after 9pm on Sunday is 1am on Tuesday.
1am
17
6
56 hours
There are 4 hours from 9 pm to 1 am.
From 5 pm to 1 am is 8 hours.
9am to 1am