4MA0 Higher June 2014 Paper 3 Q12
12
(a) Helen’s savings increased from £155 to £167.40
Work out the percentage increase in Helen’s savings. (3)
Work out the percentage increase in Helen’s savings. (3)
(b) Joe’s savings increased by 4.5%.
His savings are now £125.40
What were his savings before the increase? (3)
His savings are now £125.40
What were his savings before the increase? (3)
| Scheme | Marks |
|---|---|
| 167.4 – 155 (= 12.4) or 167.4 ÷ 155 (= 1.08) or 167.4 ÷ 155 (= 1.08) | M1 |
| “12.4” ÷ 155 (= 0.08) or “1.08” – 1 (= 0.08) or “1.08” × 100 (= 108) | M1 dep |
| 8 | A1 |
| (3) |
Notes
A1: cao
If build up approach used, award M2A1 for correct answer, otherwise M0A0.
| Scheme | Marks |
|---|---|
| \(\frac{125.4}{104.5} \times 100\) oe | M2 |
| 120 | A1 |
| (3) | |
| (6 marks) |
Notes
M2: M1 for \(\frac{125.4}{104.5}\) (= 1.2) or 104.5% = 125.4
or \(1.045x = 125.4\) oe or 1.2 seen or 5.4
If build up approach used, award M2A1 for correct answer, otherwise M0A0.