Foundation November 2018 Paper 3 Q10
10 In a game, a fair spinner has five equal sections as shown.
(a) Chloe spins the spinner.
Write down the probability that she gets ‘Miss a turn’. [1 mark]
(b) The spinner lands on ‘Go back 1 square’ three times in a row.
Jamal is next to spin.
Write down the probability that he gets ‘Go back 1 square’. [1 mark]
(c) In one game there are 85 spins.
How many of these spins are expected to be ‘Go forward 2 squares’? [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(\dfrac{1}{5}\) or 0.2 or 20% | B1 | oe fraction, decimal or percentage |
Additional guidance
| Ignore further working with any description of probability eg \(\dfrac{1}{5}\) unlikely | B1 |
| 1 : 5 in working with \(\dfrac{1}{5}\) on answer line | B1 |
| 1 : 5 on answer line | B0 |
| 1 out of 5 without \(\dfrac{1}{5}\) in working | B0 |
| Answer | Mark | Comments |
|---|---|---|
| \(\dfrac{1}{5}\) or 0.2 or 20% | B1 | oe fraction, decimal or percentage |
Additional guidance
| Ignore further working with any description of probability eg \(\dfrac{1}{5}\) unlikely | B1 |
| 1 : 5 in working with \(\dfrac{1}{5}\) on answer line | B1 |
| 1 : 5 on answer line | B0 |
| 1 out of 5 without \(\dfrac{1}{5}\) in working | B0 |
| Answer | Mark | Comments |
|---|---|---|
| \(85 \times \dfrac{2}{5}\) or \(85 \div 5 \times 2\) or \(85 \times 0.4\) or \(\left(\dfrac{2}{5} =\right) \dfrac{34}{85}\) | M1 | |
| 34 | A1 |
Additional guidance
| 34 out of 85 on answer line | M1A1 |