4MA0 Higher June 2012 Paper 3 Q8
8 On 9th May, 2009, there were 3440 people in the world with swine flu.
Of these people, 1639 were in the USA.
(a) Express 1639 as a percentage of 3440
Give your answer correct to 1 decimal place. (2)
Give your answer correct to 1 decimal place. (2)
The 3440 people who had swine flu on 9th May was an increase of 37.6% on the number of people who had swine flu on 8th May.
(b) Calculate the number of people who had swine flu on 8th May. (3)
| Scheme | Marks |
|---|---|
| \(\dfrac{1639}{3440} \times 100\) | M1 |
| 47.6 | A1 |
| (2) |
Notes
M1: for \(\dfrac{1639}{3440}\) or 0.476…
A1: for ans rounding to 47.6
Apart from Questions 9, 13, 18, 20 and 21 (where the mark scheme states otherwise) the correct answer, unless clearly obtained by an incorrect method, should be taken to imply a correct method.
| Scheme | Marks |
|---|---|
| \(\dfrac{3440}{1.376}\) or \(3440 \times \dfrac{100}{137.6}\) oe | M2 |
| 2500 | A1 |
| (3) | |
| (Total 5 marks) |
Notes
M2: for \(\dfrac{3440}{1.376}\) or \(3440 \times \dfrac{100}{137.6}\) oe
M1 for \(\dfrac{3440}{137.6}\) or 137.6% = 3440
or \(\dfrac{3440}{x} = 1.376\) or \(3440 = 1.376x\)
or 25 seen
A1: cao