O-LevelMathematicsNumber4024/11 · May/June 2018 · Q195 Marks
One day in 2016 the population of Nepal was 28795701. Write this number correct to three significant figures.
- (a)One day in 2016 the population of Nepal was 28795701. Write this number correct to three significant figures.[1]
- (b)(i)The table below shows the approximate population of some countries in 2016 and their land areas. | Country | Population | Land area in km² | |---|---|---| | Brazil | 2.1 × 10⁸ | 8.5 × 10⁶ | | Greenland | 5.6 × 10⁴ | 2.2 × 10⁶ | | Hong Kong | 7.4 × 10⁶ | 1.1 × 10³ | | India | | 3.3 × 10⁶ | | Nigeria | 1.9 × 10⁸ | 9.2 × 10⁵ | The population of India was approximately 130000000. In the table above complete the row for India. Write the number in standard form.[1]
- (b)(ii)Calculate the total land area of India and Nigeria. Give your answer in standard form.[2]
- (b)(iii)Which country in the table has the smallest population per km²?[1]
Mark scheme
Marking points from the official mark scheme (May/June 2018). The mark or mark type is shown in brackets.
- [1] 28 800 000 oe
- [1] 1.3 × 10⁸ put into the table
- [2] 4.22 x 10⁶ oe
- B1 for 3.3 × 10⁶ or [0].92 × 10⁶ or figs 422
- [1] Greenland
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