Higher November 2021 Paper 1 Q4
4 At the end of 2017
the value of Tamara’s house was £220 000
the value of Rahim’s house was £160 000
At the end of 2019
the value of Tamara’s house had decreased by 20%
the value of Rahim’s house had increased by 30%
At the end of 2019, whose house had the greater value?
You must show how you get your answer. (4)
| Answer | Mark | Mark scheme |
|---|---|---|
| Rahim and correct figures | P1 | for start to the process to find 20% for Tamara, eg \(220000 \times 0.2\) oe (= 44000) or 30% for Rahim, eg \(160000 \times 0.3\) oe (= 48000) OR for \(1 - 0.2\ (= 0.8)\) or \(100 - 20\ (= 80)\) or \(1 + 0.3\ (= 1.3)\) or \(100 + 30\ (= 130)\) |
| P1 | for a complete process to find at least one new value, eg \(220000 - \text{``}44000\text{''}\) (= 176 000) or \(160000 + \text{``}48000\text{''}\) (= 208 000) OR \(220000 \times \text{``}0.8\text{''}\) (= 176 000) or \(160000 \times \text{``}1.3\text{''}\) (= 208 000) | |
| A1 | for one correct value, 176 000 or 208 000 | |
| C1 | for correct conclusion supported by correct figures eg Rahim, 176 000 and 208 000 |
Additional guidance
Build up processes are acceptable but must be complete and correct
Award 0 marks for a correct answer with no supportive working