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O-LevelMathematicsNumber4024/21 · Oct/Nov 2025 · Q193 Marks

A car travels 320 km, correct to the nearest 10 kilometres. This journey takes 5.2 hours, correct to the nearest 0.1 hour. Calculate the lower bound for the average speed of the car.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2025). The mark or mark type is shown in brackets.

19 60 nfww [3] M2 for 310/5.25 oe or for 315/5.2 oe M1 for 315 or 325 or 5.25 or 5.15 oe seen

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About this question

Topic: Number, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source: O-Level Mathematics, Oct/Nov 2025 Paper 2 Variant 1, question 19.

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