1MA0 Foundation November 2012 Paper 2 Q16
*16 Ashley wants to buy some tins of paint.
He finds out the costs of paint at two shops.
| Paint R Us | Deco Mart |
|---|---|
| Normal price £2.19 a tin | Normal price £1.80 a tin |
| Special Offer Buy 2 tins at the normal price and get the 3rd tin free | Special Offer 10% off the normal price |
Ashley needs 9 tins of paint.
Ashley wants to get all the tins of paint from the same shop.
He wants to pay the cheapest possible total price.
Which of the two shops should Ashley buy the paint from? (6)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| Paint R Us \(6 \times 2.19\) (= 13.14) Deco Mart \(9 \times 1.80\) (= 16.20) \(16.20 \times 0.9\) (= 14.58) | Paint R Us | 6 | Paint R Us M1 for \(\text{`}9 - 3\text{'} \times 2.19\) A1 for 13.14 Deco Mart M2 for \(\frac{90}{100} \times \text{`}16.20\text{'}\) oe (M1 for \(\frac{10}{100} \times \text{`}16.20\text{'}\) oe) A1 for 14.58 C1 (dep M1) for comparison of cost of 9 tins at Paint R Us with cost of 9 tins at Deco Mart leading to a correct deduction |