1MA0 Foundation June 2015 Paper 2 Q12
*12 Here is part of Dani’s electricity bill.
| Electricity Bill | |
|---|---|
| New reading | 2968 units |
| Old reading | 2675 units |
| Price per unit | 18p |
Work out how much Dani has to pay for the units of electricity she has used. (4)
| Answer | Mark | Notes |
|---|---|---|
| £52.74 or 5274p | 4 | M1 for subtracting to find the units used (= 293) M1 for \(\text{‘}293\text{’} \times 18\) or \(\text{‘}293\text{’} \times 0.18\) A1 for 52.74 or 5274 C1 (dep M2) for identifying their answer with the correct monetary units OR M1 for \(2968 \times 18\) (= 53424) or \(2675 \times 18\) (= 48150) or \(2968 \times 0.18\) (= 534.24) or \(2675 \times 0.18\) (= 481.50) M1 for subtracting their two costs (consistent in pence or pounds) A1 for 52.74 or 5274 C1 (dep M2) for identifying their answer with the correct monetary units |