0580/42 May/Jun 2026, Question 13: Inverse proportion
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 3 marks
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The question, in short
y varies inversely with x, and y = 10.5 when x = 6. Find y when x = 9.
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Solution · 3 marks
- 1y = k/x
- 210.5 = k/6 so k = 63
- 3y = 63/9 = 7
Answer7
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Also searched as: 0580/42/M/J/26 · 0580_s26_qp_42 · 0580 s26 42 · question 13.
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