Foundation November 2017 Paper 2 Q15
15 Mr Page uses oil to heat his home.
At the beginning of November there were 1000 litres of oil in his oil tank.
Mr Page bought enough oil to fill the tank completely.
He paid 50p per litre for this oil.
He paid a total amount of £750
At the end of February Mr Page had 600 litres of oil in the tank.
He bought enough oil to fill the tank completely.
The cost of oil had increased by 4%.
Work out the total amount Mr Page paid for the oil he bought in February. (5)
| Answer | Mark | Notes |
|---|---|---|
| 988 | P1 | for a process to find the amount of oil bought in November, eg \(750 \div 0.5\ (= 1500)\) or \(75000 \div 50\ (= 1500)\) |
| P1 | for a process to find the amount of oil ordered in February, eg \(\text{``}1500\text{''} + 1000 - 600\ (= 1900)\) | |
| P1 | (indep) for a process to calculate a 4% increase of their amount of oil, eg or \(\text{``}1900\text{''} \times 1.04\ (= 1976)\) or increase in price eg \(1.04 \times 50\ (= 52\) or \(0.52)\) or \(1.04 \times 750\ (= 780)\) | |
| P1 | for a complete process to find the total cost of the calculated amount of oil eg \(\text{``}52\text{''} \times \text{``}1900\text{''}\) or \(\text{``}780\text{''} \times \text{``}1900\text{''} \div \text{``}1500\text{''}\) | |
| A1 | Cao |