1MA0 Higher November 2013 Paper 1 Q16
16 A company makes monsters.
The company makes small monsters with a height of 20 cm.
A small monster has a surface area of 300 cm\(^2\).
The company also makes large monsters with a height of 120 cm.
A small monster and a large monster are mathematically similar.
Work out the surface area of a large monster. (3)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(120 \div 20 = 6\) \(6^2 = 36\) \(36 \times 300 = 10\,800\) | 10 800 | 3 | M1 \(120 \div 20\) (= 6) oe, can be implied by \(120^2 \div 20^2\) M1 ‘6’\(^2 \times 300\) A1 cao |