0580/12 Oct/Nov 2025, Question 15: Dividing in a Given Ratio
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 3 marks
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The question, in short
Three sisters split $n in the ratio 10 : 3 : 2, with the smallest share being $120; work out n.
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Solution · 3 marks
- 12 parts = $120, so 1 part = $60
- 2n = 60 × (10 + 3 + 2) = 60 × 15 = 900
Answer900
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