# Solve Problems Related to Time

In this worksheet, students will learn how many seconds, minutes and hours there are in various time periods, including halves and quarters.

Key stage:  KS 2

Curriculum topic:   Measurement

Curriculum subtopic:   Solve Time Problems

Difficulty level:

#### Worksheet Overview

For this activity, and for everyday life too, you need to know that there are:

60 seconds in 1 minute

60 minutes in 1 hour

This means that there are:

30 seconds in ½ minute

15 seconds in ¼ minute

45 seconds in ¾ minute

30 minutes in ½ hour

15 minutes in ¼ hour

45 minutes in ¾ hour

Don't worry if you feel like the child above, you don't have to learn it all at once!

Let's see how it works in practice.

Example 1

Jack takes 5¼ minutes to learn his capital cities.

How many seconds is this?

1 minute = 60 seconds.

½ minute = 30 seconds.

¼ minute = 15 seconds.

5 minutes = 5 × 60 = 300 + ¼  minute = 300 + 15 = 315 seconds.

Example 2

Ahmed starts work at 9.00 a.m. and finishes at 4:30 p.m.

For how many minutes is he at work?

From 9.00 a.m. to 4 .00 p.m. is 7 hours.

30 minutes is half an hour.

So Ahmed is at work for 7½ hours.

7 hours = 7 × 60 = 420 + ½ hour  = 420 + 30 = 450 minutes.

That looks a bit simpler, doesn't it?

Let's have a go at some questions and remember that you can check back to these examples any time you need to by clicking on the pink button on the right-hand side of the screen.

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