1MA0 Foundation November 2012 Paper 2 Q10
10 You can use this rule to work out the total charge for hiring a concrete mixer.
Total charge = £30 plus £8 each day
Esme hired a concrete mixer for 4 days.
(a) Work out the total charge. (2)
William also hired a concrete mixer.
The total charge was £110
(b) Work out how many days William hired the concrete mixer for.
days (3)
days (3)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(30 + 8 \times 4\) | 62 | 2 | M1 for \(30 + 8 \times 4\) or attempt to add four 8s to 30 (allow one error in addition) A1 cao |
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(110 - 30 = 80\) \(80 \div 8 = 10\) OR \(110 - 62 = 48\) \(48 \div 8 = 6\) \(4 + 6 = 10\) | 10 | 3 | M1 for \(110 - 30\) (=80) M1 (dep) for \(\text{`}80\text{'} \div 8\) or A1 cao OR M1 for \(110 - 62\) (= 48) M1(dep) for \(\text{`}48\text{'} \div 8 = 6\) A1 cao |