Foundation June 2025 Paper 3 Q18
18 Amy buys a car.
The car costs £12 000
Amy pays a deposit of 20% of the cost.
She pays the rest of the cost in 24 equal monthly payments.
Amy says that each monthly payment is less than £450
Is Amy correct?
You must show how you get your answer. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| Yes (supported) | P1 | for process to decrease \(12\,000\) by 20%, eg \(12\,000 - 12\,000 \times 0.2\) oe \((= 9600)\) or \(12\,000 \times 0.8\) oe \((= 9600)\) or for process to find the value of 24 monthly payments of £450, eg \(450 \times 24\ (= 10\,800)\) or for process to split the cost of the car over 24 months, eg \(12\,000 \div 24\ (= 500)\) |
| P1 | for process to find comparable values, eg \(\text{``}9600\text{''} \div 24\ (= 400)\) or eg \(12\,000 \times 0.8\) oe \((= 9600)\) and \(450 \times 24\ (= 10\,800)\) or \(12\,000 - \text{``}10\,800\text{''}\ (= 1200)\) or \(\text{``}9600\text{''} \div 450\ (= 21\ldots)\) or \(\text{``}10\,800\text{''} + 12\,000 \times 0.2\) oe \((= 13\,200)\) or eg \(\text{``}500\text{''} \times 0.8\ (= 400)\) oe | |
| C1 | for Yes and correct comparable value(s), eg Yes and 400 or Yes and 9600 and \(10\,800\) or Yes and 10% = 1200 where 1200 comes from \(12\,000 - \text{``}10\,800\text{''}\) or Yes and 21… or Yes and \(13\,200\) |
Additional guidance
Build up processes are allowed.
Condone one error in the build-up process.
Award P0 for 1200 coming from \(12\,000 \times 0.1\) oe
Award no marks for correct decision with no supportive working
‘Yes’ may be implied by an equivalent statement eg ‘Amy is right’ or ‘She is correct’