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0580/13 May/Jun 2025, Question 11: Pie Charts

Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Non-calculator · 6 marks

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The question, in short

From a survey of 90 people, use the pie chart with Pop 120° and Rock 100° to find counts and angles, then complete the chart.

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

Part (a) · 2 marks

Calculate how many of the 90 people chose pop, given its sector is 120°.

  1. 1Pop = 120/360 × 90
  2. 2= 30

Answer30

Part (b) · 1 mark

Draw the classical sector, which has an angle of 80°, onto the pie chart.

  1. 1Use a protractor from the edge of the Rock sector (or Pop sector) and draw a radius at 80° to make the Classical sector

AnswerSector 80° drawn on pie chart

Part (ci) · 2 marks

Given 9 people prefer jazz, work out the jazz sector angle.

  1. 1Jazz angle = 9/90 × 360
  2. 2= 36°

Answer36

Part (cii) · 1 mark

Finish the pie chart by drawing the remaining sector(s).

  1. 1Each person is 360 ÷ 90 = 4°
  2. 2Jazz = 9 × 4 = 36°
  3. 3Folk = 360 − 120 − 100 − 80 − 36 = 24°
  4. 4Draw and label the 36° Jazz and 24° Folk sectors: Completed pie chart

AnswerCompleted pie chart

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

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Also searched as: 0580/13/M/J/25 · 0580_s25_qp_13 · 0580 s25 13 · question 11.
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