Edexcel IGCSEMathematicsGeneral Applications4 Marks
The price of a house increased by 20% in 2022. It then decreased by 15% in 2023. The price of the house at the end of 2023 was £340 000. Work out the price of the house at the start of 2022. Give your answer to 3 significant figures.
Mark scheme
Marking points from the official mark scheme. The mark or mark type is shown in brackets.
- M1 for 340000 ÷ 0.85 (= 400000)
- M1 for '400000' ÷ 1.2 (= 333333.33...)
- A1 for 333000 (accept 333,333 or 333,333.33... rounded to 3sf)
- C1 for showing working for reverse percentages in correct order
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