Higher June 2019 Paper 2R Q21
21 The diagram shows two similar bottles, A and B.
Diagram NOT accurately drawn
Bottle A has surface area 240 cm2
Bottle B has surface area 540 cm2 and volume 2025 cm3
Work out the volume of bottle A.
(3)
| Scheme | Marks |
|---|---|
| (LSF =) \(\sqrt{240 \div 540}\) or \(\dfrac{2}{3}\) or \(\dfrac{3}{2}\) or 1.5 or 3 : 2 or 2 : 3 | M1 |
| \(\left(\dfrac{2}{3}\right)^3 \times 2025\) oe accept 0.66 or better for 2/3 | M1 |
| 600 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: Full method leading to correct answer