Calculating with Time

Jean is going to the beach. It takes her 25 minutes to get from her home to the beach. It takes her 25 minutes to get from the beach to her home. Jean leaves home at 2.40 pm. She has to get home by 6 pm. What is the greatest length of time Jean can stay at the beach?

• 3hr50

• 350m

• 310m

• 3hr10

Jeff lives in Bath. He works in an office in London. Jeff leaves his home in Bath at 07:10. He catches a train in Bath at 07:35. The train takes 1 hour 35 minutes to get to London. It then takes Jeff 40 minutes to get to his office. At what time does Jeff get to his office? Answer using the 24hr clock

Jasmine wants to record a film on a DVD. The film is 95 minutes long. Jasmine's DVD has 1 ½ hours of recording time left. Can she do it?

• yes

• no

Jo and Liz work in the same shop. One day, Liz starts work at 9.30 am and stops working 5 hours later. Jo works from 11.30 am until 4.30 pm. Work out the number of hours that Jo and Liz are working at the same time.

It takes Tom 1 hour to lay 30 bricks. He has to lay 180 bricks. (HINT: to work out how many hours for 180 you divide 180 by 30)

Tom starts to lay the bricks at 9 am.

He has half an hour break at 11 am.

He has another half an hour break at 1 pm.

What time should Tom finish laying the 180 bricks? Answer with the 24hr clock

Samantha has to go to a meeting. The meeting should start at 2 pm. Samantha gets to the meeting at 1 45 pm.

How long does Samantha have to wait until 2 pm?

Samantha has to go to a meeting. The meeting should start at 2 pm.

The 2 pm meeting starts 10 minutes late. The meeting lasts 55 minutes.

Work out the time the meeting finishes.

A film starts at 1830. The film ends at 2050

How long does the film last?

Write 8:45 pm as a 24-hour clock time.