4MA0 Higher January 2017 Paper 3R Q4
4 A plane flew 8740 km from Nairobi to Hong Kong.
The flight time was 13 hours 15 minutes.
Work out the average speed of the plane.
Give your answer, in kilometres per hour, correct to the nearest whole number.
(3)
| Scheme | Marks |
|---|---|
| 15 ÷ 60 (=0.25) or 13.25 or 13 × 60 + 15 (=795) or 13 × 3600 + 15 × 60 (=47700) | M1 |
| 8740 ÷ “13.25” or 8740 ÷ “795” × 60 or 8740 ÷ “47700” × 3600 | M1 |
| 660 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: accept 8740 ÷ 13.15 or an answer of 664 - 665
A1: accept 659.6 – 660