Higher June 2025 Paper 6 Q11
11 Amit invests some money at a rate of 4% per year compound interest.
After 2 years the value of Amit’s investment is £1352.
Work out how much money Amit invested. [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 1250 nfww | 4 | M3 for \(\frac{1352}{1.04^2}\) oe or M2 for \(\frac{1352}{1.04}\) may be implied by 1300 or B1 for 1.04 oe may be implied by 1.0816 or for 104[%] associated with 1352 or for \(1352 = P\left(1 + \frac{4}{100}\right)^2\) | May be performed in stages Continuing to find the interest (1352 – 1250 = 102) scores M3 eg \(\frac{104}{100}\) but not just \(1 + \frac{4}{100}\) For B1 allow fraction but not just 104% Note: 1352 ÷ 1.08 = 1251.85… corrected to 3 sf = 1250, scores 0 |