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Ratio and Proportion: Reading a Pie Chart (1)

In this worksheet, students read information from a pie chart and answer questions about it.

'Ratio and Proportion: Reading a Pie Chart (1)' worksheet

Key stage:  KS 2

Year:  Year 5 11+ worksheets

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Interpreting Data

Difficulty level:  

Worksheet Overview

Pie charts are based on fractions of 360°.

The fractions can be worked out from the angles at the centre of the chart.



This pie chart shows the results of a survey on favourite crisp flavours.


The Salt and Vinegar sector shows 36° which is 36/360 of the whole circle (i.e. 1/10).


Now we need a hard fact, such as the actual number who chose Salt and Vinegar or the total number in the survey.


Example 1

If 15 people chose Salt and Vinegar, how many people took part in the survey?



15 people are shown in 1/10 of the circle, so there must be 10 x 15 = 150 people in total.



Example 2

If 40 people took the survey, how many people chose Salt and Vinegar?



We need to work out 1/10 of 40 = 4, so 4 people chose Salt and Vinegar.

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