4MA0 Foundation June 2011 Paper 2 Q13
13
(a) Rachael uses her car for work.
Her company pays her 32 cents for every kilometre she travels by car.
Yesterday, her company paid her $48 for the distance she travelled by car.
Work out the distance she travelled by car yesterday. (3)
Her company pays her 32 cents for every kilometre she travels by car.
Yesterday, her company paid her $48 for the distance she travelled by car.
Work out the distance she travelled by car yesterday. (3)
(b) The length of the journey from her home to work is 72 km.
The journey takes 1 hour 20 minutes.
Work out her average speed in km/h. (3)
The journey takes 1 hour 20 minutes.
Work out her average speed in km/h. (3)
| Scheme | Marks |
|---|---|
| 48 ÷ 0.32 oe | M2 |
| 150 | A1 |
| (3) |
Notes
M2: (M1 for 48 × 100 or 32/100 i.e attempt to have equal units)
| Scheme | Marks |
|---|---|
| \(72 \div 1\frac{1}{3}\) oe | M2 |
| 54 | A1 |
| (3) | |
| (Total 6 marks) |
Notes
M2: accept 72 ÷ 1.33 (2dp or better) or 0.9 × 60
(B1 M0 for 72 ÷ 1.2(0) {=60} or 72 ÷ 80 {=0.9} or 72 ÷ 1.3 {=55.4} or better)
A1: cao