Higher June 2024 Paper 2 Q3
3 A plane takes 9 hours 36 minutes to fly from New Delhi to Perth.
The plane flies at an average speed of 820 km/h.
Work out the total distance the plane flies.
(3)
| Scheme | Marks |
|---|---|
For 9 hrs 36 mins = 9.6 (hrs) or \(9\dfrac{36}{60}\) (hrs) or \(9\dfrac{3}{5}\) (hrs) oe or 576 (mins) | M1 |
eg 820 × “9.6” or \(820 \times \dfrac{576}{60}\) or \(576 \times \dfrac{820}{60}\) or \(576 \times \dfrac{41}{3}\) (allow 13.7 for \(\dfrac{41}{3}\)) oe | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: 7872 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: For a correct conversion of time into hours or into minutes
M1: For use of distance = speed × time in hours (eg allow use of 9.36 for this mark)
A1: SCB1 for 7675.2 if no other marks awarded
Award M2 for
\(820 \times 9 + \dfrac{820}{60} \times 36\)
\((= 7380 + 492)\)
or
\(\dfrac{34\,560}{60 \times 60} \times 820\) oe