4MA0 Higher June 2011 Paper 4 Q4
4 The length of Rachael’s 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)
| Scheme | Marks |
|---|---|
| \(72 \div 1\frac{1}{3}\) oe | B1M1 |
| 54 | A1 |
| (Total 3 marks) |
Notes
B1M1: 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}) or 72000 ÷ 1.33( or better)
A1: cao
Apart from questions 5b, 8, 15d, 20b, 21b, 23, 24b (where the mark scheme states otherwise) the correct answer, unless clearly obtained by an incorrect method, should be taken to imply correct working.