4024/12 Oct/Nov 2023, Question 2: Fractions of an Amount
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 1 mark
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The question, in short
A rectangle is divided into 3 large and 9 small squares, where a large square's side is twice a small square's side; one of each size is shaded. Find the shaded fraction.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 1 mark
- 1Large square = 2 × 2 = 4 small squares
- 2Rectangle = 3 × 4 + 9 = 21 small squares
- 3Shaded = 4 + 1 = 5 small squares
- 4Fraction shaded = 5/21
Answer5/21
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