Higher November 2023 Paper 1 Q14
14 Cora is revising for two subjects, History and French.
The time she spends revising is in the ratio
History : French = 7 : 2
The time she spends revising for History is 20 hours more than for French.
Work out the total time she spends revising. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(7x = 2x + 20\) or \(\dfrac{x - 20}{x} = \dfrac{2}{7}\) or \(\dfrac{x + 20}{x} = \dfrac{7}{2}\) or \(20 \div (7 - 2)\) or \(20 \div 5\) or 4 | M1 | oe any letter |
| \(7 \times 20 \div (7 - 2)\) or 28 or \(2 \times 20 \div (7 - 2)\) or 8 or \((7 + 2) \times 20 \div (7 - 2)\) | M1dep | oe hours for History hours for French total hours |
| 36 | A1 |