Word problems related to elapsed time

Today in math class we learned how to solve problems related to elapsed time.  Even though time is something we need to deal with everyday, calculating elapsed time mathematically can sometimes be tricky because seconds, minutes and hours are based on a numbering system based of 60 vs more common numbers like 10s and 100s.

Try these and see how you do.

Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m. How long did she take to do her homework? min

A chess game started at 10.20 a.m. and ended at 12.30 p.m. How long did the game last? h min

Peter opens his shop at 9.30 a.m. and closes it at 8.00 pm. every day. How long is the shop open? h min

It takes 1 h 5 min for Bob to travel from home to his office. If he wants to reach the office by 8.30 a.m. what time should he leave his house? a.m.

A bus travels from town A to town B. It leaves town A at 9.30 a.m. Monday. The journey takes 26 h 20 min. When would the bus arrive in town B?

Time: a.m.
Day:

On Monday, Donny spent 1 h 12 min painting the fence. On Tuesday, he spent 1 h 16 min painting the fence. How long did he spend painting the fence on those two days? h min

Susan spent 1 h 15 min washing her car and 1 h 50 min cleaning her house. How long did she take to complete both these tasks? h min

On Monday a painter spent 6 h 20 min to paint a building. On Tuesday the painter spent 4 h 45 min to finish painting the building. How long did the painter spend to paint the building? h min

John took 1 h 35 min to drive from Town A to Town B. Jason started from Town A at the same time but arrived in Town B 38 min later. How long did it take Jason to drive from Town A to Town B? h min

Alison took 54 minutes to walk to school. Her brother took 18 minutes less to walk to the same school. How long did it take Alison’s brother to walk to school?   min