Foundation June 2019 Paper 3 Q22
22 In October Sally drove 560 miles in her car.
The car travelled 34.5 miles for each gallon of petrol used.
Petrol cost £1.08 per litre.
1 gallon \(=\) 4.55 litres.
Work out the cost of the petrol the car used in October. (4)
| Answer | Mark | Mark scheme |
|---|---|---|
| 79.76 | P1 | process to find number of gallons eg \(560 \div 34.5\ (=16.23\ldots)\) OR finding the miles per litre eg \(34.5 \div 4.55\ (=7.582\ldots)\) |
| P1 | process to convert from gallons to litres eg \(\text{``}16.23\text{''} \times 4.55\ (=73.855\ldots)\) OR to work out the cost per gallon eg \(4.55 \times 1.08\ (=4.914)\) OR finding the number of litres eg \(560 \div \text{``}7.582\ldots\text{''}\ (=73.859\ldots)\) | |
| P1 | (dep P2) for a complete process to work out the cost using the operations \((560 \div 34.5) \times 4.55 \times 1.08\) eg \(\text{``}73.855\ldots\text{''} \times 1.08\ (=79.763\ldots)\) or \(\text{``}4.914\text{''} \times \text{``}16.23\ldots\text{''}\ (=79.763\ldots)\) or \(\text{``}73.859\ldots\text{''} \times 1.08\ (=79.763\ldots)\) | |
| A1 | for 79.69 to 79.79 |
Additional guidance
For P marks allow use of truncated/rounded values
For the A1: To 2 dp but accept 79.7