4024/11 Oct/Nov 2025, Question 11: Combined mean
Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
In a bag of 10 plums, 6 have mean mass 50 g and the other 4 have mean mass 40 g. Find the mean mass of all 10.
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Solution · 3 marks
- 1Total mass = 6 × 50 + 4 × 40 = 300 + 160 = 460 g
- 2Mean = 460 ÷ 10 = 46 g
Answer46
Stuck on a step? Read the free lesson: Mean, Median, Mode and Range
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