O-LevelMathematicsMensuration4024/13 · May/June 2025 · Q73 Marks
Asif is making a rectangular lawn 14 m by 19 m. He uses grass seed to make the lawn. The grass seed costs $0.34 for 1 m². By writing each number correct to 1 significant figure, estimate the cost of seed needed.
- Asif is making a rectangular lawn 14 m by 19 m. He uses grass seed to make the lawn. The grass seed costs $0.34 for 1 m². By writing each number correct to 1 significant figure, estimate the cost of seed needed.[3]
Mark scheme
Marking points from the official mark scheme (May/June 2025). The mark or mark type is shown in brackets.
- [3] 10 and 20 and 0.3 seen as rounded values and final answer 60
- M1 for product 14 ×19 × 0.34 soi
- B1 for two from 20,10 and 0.3 seen as rounded values
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