Foundation June 2024 Paper 1 Q10
10 There are 29 cars in a car park.
10 of the cars are red.
The rest of the cars are white or blue.
Sasha selects at random one of these cars.
(a) Write down the probability that she selects a red car. (1)
The probability that Sasha selects a white car is \(\dfrac{7}{29}\)
(b) Work out the probability that she selects a blue car. (2)
| Scheme | Marks |
|---|---|
| \(\dfrac{10}{29}\) | B1 |
| (1) |
Notes
B1: oe 0.34(48275…) or 34.(48275…)%
truncated or rounded
| Scheme | Marks |
|---|---|
\(\dfrac{29 - 10 - 7}{29}\) or \(1 - \dfrac{10 + 7}{29}\) or 29 – 10 – 7 or 12 or 1 – 0.34(482…) – 0.24(137…) | M1 |
Working not required, so correct answer scores full marks (unless from obvious incorrect working) Answer: \(\dfrac{12}{29}\) | A1 |
| (2) | |
| (3 marks) |
Notes
A1: oe 0.41(37931…) – 0.42 or 41.(37931…)% – 42%
penalise incorrect notation only once