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0580/31 Oct/Nov 2023, Question 3: Pie Charts

Cambridge IGCSE Mathematics 0580 · Paper 31 (Core) · Calculator · 11 marks

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The question, in short

Use a bar chart of 80 students' countries and a temperature scenario to answer value, comparison, percentage and pie chart questions.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (ai) · 1 mark

Read the bar for Brazil and state how many students live there.

  1. 1Brazil bar height = 9

Answer9

Part (aii) · 1 mark

Identify which country has the tallest bar, i.e. most students.

  1. 1Tallest bar is India (23), so India

AnswerIndia

Part (aiii) · 1 mark

Compare the China and Australia bars and give how many more live in China.

  1. 1China 18 − Australia 11 = 7

Answer7

Part (aiv) · 2 marks

Calculate the percentage of the 80 students who live in the USA.

  1. 1USA = 19 students
  2. 219/80 × 100 = 23.75%

Answer23.75

Part (bi) · 1 mark

Find the temperature difference between 8 am at −3 °C and 3 pm at 7 °C.

  1. 17 − (−3) = 10 °C

Answer10

Part (bii) · 1 mark

Starting from 7 °C at 3 pm, find the 10 pm temperature that is 12 °C lower.

  1. 17 − 12 = −5 °C

Answer−5

Part (c) · 4 marks

Use the frequencies 12, 26, 42 out of 80 to complete the pie chart sectors.

  1. 1Each student = 360 ÷ 80 = 4.5°
  2. 2French = 12 × 4.5 = 54°, Spanish = 26 × 4.5 = 117°, English = 42 × 4.5 = 189°
  3. 3Draw the sectors from the vertical radius with a protractor and label them

AnswerCorrect pie chart

Stuck on a step? Read the free lesson: Pie Charts

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Also searched as: 0580/31/O/N/23 · 0580_w23_qp_31 · 0580 w23 31 · question 3.
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