Higher June 2022 Paper 2R Q8
8 A cinema increased the cost of an adult ticket by 12%
After the increase, the cost of an adult ticket was £18.20
Work out the cost of an adult ticket before the increase.
(3)
| Scheme | Marks |
|---|---|
1 + 0.12 (= 1.12) oe or 100(%) + 12(%) (=112(%)) or \(\dfrac{18.20}{112}\left(= \dfrac{13}{80} = 0.1625\right)\) or \(x + 0.12x = 18.2(0)\) or \(x \times 1.12 = 18.2(0)\) | M1 |
eg 18.2(0) ÷ “(1 + 0.12)” oe or \(\dfrac{18.2(0)}{\text{``}{112}\text{''}} \times 100\) oe | M1 |
| 16.25 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for a complete method