4400 Higher June 2007 Paper 3 Q8
8
(a) Shri invested 4500 dollars. After one year, he received 270 dollars interest.
Work out 270 as a percentage of 4500 (2)
Work out 270 as a percentage of 4500 (2)
(b) Kareena invested an amount of money at an interest rate of 4.5% per year.
After one year, she received 117 dollars interest.
Work out the amount of money Kareena invested. (2)
After one year, she received 117 dollars interest.
Work out the amount of money Kareena invested. (2)
(c) Ravi invested an amount of money at an interest rate of 4% per year.
At the end of one year, interest was added to his account and the total amount in his account was then 3328 dollars.
Work out the amount of money Ravi invested. (3)
At the end of one year, interest was added to his account and the total amount in his account was then 3328 dollars.
Work out the amount of money Ravi invested. (3)
| Scheme | Marks |
|---|---|
| \(\dfrac{270}{4500} \times 100\) | M1 |
| 6 | A1 |
| (2) |
Notes
M1: for \(\dfrac{270}{4500}\) or 0.06 or \(\dfrac{4770}{4500}\) or 1.06
A1: cao
| Scheme | Marks |
|---|---|
| \(117 \times \dfrac{100}{4.5}\) | M1 |
| 2600 | A1 |
| (2) |
Notes
M1: for \(\dfrac{117}{4.5}\) or 26 seen
A1: cao
| Scheme | Marks |
|---|---|
| \(\dfrac{3328}{1.04}\) or \(3328 \times \dfrac{100}{104}\) | M2 |
| 3200 | A1 |
| (3) | |
| (7 marks) |
Notes
M2: for \(\dfrac{3328}{1.04}\) or \(3328 \times \dfrac{100}{104}\)
M1 for \(\dfrac{3328}{104}\), 104% = 3328 or 32 seen
A1: cao