Higher January 2019 Paper 1R Q7
7 The diagram shows two water towers in Kuwait.
Diagram NOT accurately drawn
The real height of tower A is 187 m.
The real height of tower B is 147 m.
Ahmed makes a scale model of both towers.
The height of tower A on the scale model is 90 cm.
Work out the height of tower B on the scale model.
Give your answer correct to the nearest centimetre.
(3)
| Scheme | Marks |
|---|---|
| eg \(\dfrac{187}{147}\) or \(\dfrac{147}{187}\) or \(\dfrac{90}{187}\) or \(\dfrac{187}{90}\) | M1 |
| eg \(90 \div \dfrac{187}{147}\) or \(90 \times \dfrac{147}{187}\) or \(147 \times \dfrac{90}{187}\) or \(147 \div \dfrac{187}{90}\) | M1 |
| 71 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for an appropriate scale factor, candidates may work in either cm or m
M1: for a complete method, candidates may work in either cm or m
A1: 70.7 – 71