# Ratio and Proportion: Reading a Pie Chart (2)

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

Key stage:  KS 2

Curriculum topic:   Statistics

Curriculum subtopic:   Use Charts and Graphs

Difficulty level:

### QUESTION 1 of 10

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.

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

40 people took part in the survey.

How many chose Prawn Cocktail?

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

80 people took part in the survey.

How many chose Prawn Cocktail?

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

80 people took part in the survey.

How many chose Chicken?

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

40 people took part in the survey.

How many chose Chicken?

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

40 people took part in the survey.

How many chose Cheese and Onion?

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

80 people took part in the survey.

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

200 people took part in the survey.

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

200 people chose Chicken.

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

202 people chose Chicken.

How many chose Prawn Cocktail?

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

20 people chose Prawn Cocktail.

How many chose Cheese and Onion?

• Question 1

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

40 people took part in the survey.

How many chose Prawn Cocktail?

4
EDDIE SAYS
Prawn Cocktail is 1/10 of the whole circle. 1/10 of 40 = 4, so 4 people chose Prawn Cocktail.
• Question 2

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

80 people took part in the survey.

How many chose Prawn Cocktail?

8
EDDIE SAYS
Prawn Cocktail is 1/10 of the whole circle. 1/10 of 80 = 8, so 8 people chose Prawn Cocktail.
• Question 3

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

80 people took part in the survey.

How many chose Chicken?

16
EDDIE SAYS
72/360, or 1/5, of the circle chose Chicken. 1/5 of 80 = 16, so 16 people chose chicken.
• Question 4

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

40 people took part in the survey.

How many chose Chicken?

8
EDDIE SAYS
72/360, or 1/5, of the circle chose Chicken. 1/5 of 40 = 8, so 8 people chose Chicken.
• Question 5

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

40 people took part in the survey.

How many chose Cheese and Onion?

16
EDDIE SAYS
144/360, or 2/5, of the people chose Cheese and Onion. 2/5 of 40 = 16 (40 divided by 5 = 8, 8 x2 = 16) So 16 people chose Cheese and Onion.
• Question 6

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

80 people took part in the survey.

16
EDDIE SAYS
72/360, or 1/5, of the people chose Ready Salted. 1/5 of 80 = 16, so 16 people chose Ready Salted.
• Question 7

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

200 people took part in the survey.

40
EDDIE SAYS
72/360, or 1/5, of the people chose Ready Salted. 1/5 of 200 = 40, so 40 people chose Ready Salted.
• Question 8

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

200 people chose Chicken.

200
EDDIE SAYS
200, or 1/5, of the people chose Chicken. 1/5 of the people also chose Ready Salted, so it is also 200.
• Question 9

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

202 people chose Chicken.

How many chose Prawn Cocktail?

101
EDDIE SAYS
If 202 people chose chicken, then half of that number chose Prawn Cocktail which is 101.
• Question 10

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

20 people chose Prawn Cocktail.

How many chose Cheese and Onion?

80
EDDIE SAYS
If 20 people chose Prawn Cocktail, 4 x 20 chose Cheese and Onion. 4 x 20 = 80.
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