Foundation November 2021 Paper 2 Q15
15. The diagram shows a vegetable plot in the shape of a trapezium.
Diagram not drawn to scale
It costs £1.35 per m2 to treat the plot with fertiliser.
Show that it costs less than £14 to treat the plot with fertiliser. [4]
| Scheme | Marks | Comments |
|---|---|---|
| 0.5 × (3.9 + 4.6) × 2.4 or (3.9 × 2.4) + ½ × (4.6 – 3.9) × 2.4 | M1 | For correct structure of formula; |
| 10.2 | A1 | CAO |
| 10.2 × 1.35 OR 14 ÷ 1.35 | M1 | FT ‘their derived 10.2’; must be derived from a dimensionally correct formula |
| (£)13.77 OR 10.3(7…) | A1 | FT ‘their derived 10.2 × 1.35’ provided both M1’s awarded and ‘their answer’ < 14 |
| (4) |