Foundation November 2020 Paper 2R Q10
10 Freda is playing a car racing game on her computer.
She sets up her computer so that her car completes each lap in the same number of seconds.
Her car completes 3 laps in 72 seconds.
To win the game, Freda has to complete 68 laps in less than half an hour.
Does Freda win the game?
Give a reason for your answer.
(4)
| Scheme | Marks |
|---|---|
| 72 ÷ 3 (= 24) or \(\dfrac{x}{68} = \dfrac{72}{3}\) | M1 |
| ‘24’ × 68 (= 1632) or \((x =) \dfrac{72}{3} \times 68\) oe | M1 |
‘1632’ ÷ 60 (= 27.2) or 30 × 60 (= 1800) or ‘1632’ ÷ 3600 (= \(\dfrac{34}{75}\) = 0.453(333...)) | M1 |
| Yes with correct figures | A1 |
| (4) | |
| (4 marks) |
Notes
A1: Yes and 27.2 or (1632 and 1800) seen
or Yes and 0.453 oe seen
Alternative (calculation in minutes)
| Scheme | Marks |
|---|---|
| 72 ÷ 60 (= 1.2) | M1 |
| ‘1.2’ ÷ 3 (= 0.4) | M1 |
| 68 × ‘0.4’ (= 27.2) | M1 |
| Answer: Yes, with correct figures | A1 |
A1: Yes and 27.2 seen