4400 Higher November 2009 Paper 4 Q5
5
(a) Cheng invested 3500 dollars.
At the end of one year, interest of 161 dollars was added to his account.
Express 161 as a percentage of 3500 (2)
At the end of one year, interest of 161 dollars was added to his account.
Express 161 as a percentage of 3500 (2)
(b) Lian invested an amount of money at an interest rate of 5.2% per year.
After one year, she received interest of 338 dollars.
Work out the amount of money Lian invested. (3)
After one year, she received interest of 338 dollars.
Work out the amount of money Lian invested. (3)
| Scheme | Marks |
|---|---|
| \(\dfrac{161}{3500} \times 100\) | M1 |
| 4.6 | A1 |
| (2) |
Notes
M1: for \(\frac{161}{3500}\) oe inc 0.046
A1: cao
| Scheme | Marks |
|---|---|
1% = $\(\dfrac{338}{5.2}\) or 65 seen or 5.2% (of amount) = 338 | M1 |
| “65” × 100 | M1 |
| 6500 | A1 |
| (3) | |
| (5 marks) |
Notes
M1: M2 for \(\frac{338}{5.2} \times 100\) or \(\frac{338}{0.052}\)