Foundation June 2024 Paper 2 Q9
9 An electric car uses 1 unit of electricity to travel 3 miles.
1 unit of electricity costs 50 pence.
Work out the cost of electricity, in pounds, to travel 270 miles. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| Alternative method 1 | ||
| \(270 \div 3\) or 90 or \(270 \times 50\) or 13 500 or \(270 \times 0.5(0)\) or 135 | M1 | oe |
| \(270 \div 3 \times 50\) or \(270 \div 3 \times 0.5(0)\) | M1dep | oe |
| 45 | A1 | |
| Alternative method 2 | ||
| Correctly finds units and cost for at least 30 miles | M1 | eg 30 miles \(=\) 10 units and 10 units cost (£)5 |
| Correct method for cost of 270 miles | M1dep | |
| 45 | A1 | |
Additional guidance
| 45.00(p) | M1M1A1 |
| 45.0 | M1M1A0 |
| Accept 0.33(…) or 33.(…)% for \(\dfrac{1}{3}\) | |
| Further work eg \(45 \div 2\) | M1M1A0 |
| Embedded answer of 45 but not selected | M1M1A0 |