4MA0 Higher January 2014 Paper 4R Q11
11 The table shows the population of each of three countries in 2012.
| Country | Population |
|---|---|
| India | \(1.21 \times 10^9\) |
| Turkey | \(7.48 \times 10^7\) |
| Singapore | \(5.2 \times 10^6\) |
(a) Find the total population of India, Turkey and Singapore in 2012.
Give your answer in standard form. (2)
Give your answer in standard form. (2)
Population density is calculated by the formula
Population density = Population ÷ Land area
The land area of India is \(3.29 \times 10^6\) km2
(b) Calculate the population density of India in 2012.
Give your answer correct to 3 significant figures. (2)
Give your answer correct to 3 significant figures. (2)
| Scheme | Marks |
|---|---|
| \(1.21 \times 10^9 + 7.48 \times 10^7 + 5.2 \times 10^6\) | M1 |
| \(1.29 \times 10^9\) | A1 |
| (2) |
Notes
M1: Intention to add 3 correct numbers or digits 1 290 ...
A1: cao Must be in standard form.
| Scheme | Marks |
|---|---|
| \((1.21 \times 10^9) \div (3.29 \times 10^6)\) | M1 |
| 368 | A1 |
| (2) | |
| (4 marks) |
Notes
A1: awrt 368 ( 367.781153..)