Higher November 2020 Paper 1R Q5
5 In 2017, the population of a village was 7500
In 2019, the population of the village was 8265
(a) Work out the percentage increase in the population of the village from 2017 to 2019 (3)
In a sale, normal prices are reduced by 30%
The sale price of a T-shirt was 31.50 euros.
(b) Work out the normal price of the T-shirt. (3)
| Scheme | Marks |
|---|---|
| 8265 – 7500 (= 765) or \(\dfrac{8265}{7500}(= 1.102)\) | M1 |
| \(\dfrac{\text{“}{765}\text{”}}{7500} \times 100\) oe or “1.102” × 100 – 100 oe | M1 |
| 10.2 | A1 |
| (3) |
Notes
M1: 8265 – 7500 could be embedded in another calculation.
A1: oe
| Scheme | Marks |
|---|---|
| e.g. 31.5(0) ÷ (1 – 0.3) | M2 |
| 45 | A1 |
| (3) | |
| (6 marks) |
Notes
M2: for a complete method
e.g. 31.5(0) ÷ (1 – 0.3)
(M1 for 31.5(0) ÷ (100 – 30) (= 0.45)
or e.g. (1 – 0.3)\(x\) = 31.5(0))