Foundation June 2024 Paper 2 Q22
22 Change a speed of \(w\) metres per second to a speed in kilometres per hour.
Give your answer in terms of \(w\) in its simplest form.
(3)
| Scheme | Marks |
|---|---|
For one of \(w \div 1000\) or \(w \div 10^3\) or \(w \times 10^{-3}\) or \(0.001w\) oe or (\(w \times 60 \times 60\)) oe or \(w \times 3600\) or \(w \div \dfrac{1}{3600}\) oe | M1 |
| \(\dfrac{w \times 60 \times 60}{1000}\) oe eg \(w \times \dfrac{3600}{1000}\) | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: \(3.6w\) | A1 |
| (3) | |
| (3 marks) |
Notes
M1: award this mark for
\(\dfrac{3600}{1000}\) or \(\dfrac{18}{5}\) or 3.6 oe (without a link to \(w\))
M1: For a fully correct method including \(w\)
A1: or \(\dfrac{18}{5}w\) or \(3\dfrac{3}{5}w\)
allow \(3.6 \times w\)