O-LevelMathematicsNumber4024/12 · May/June 2020 · Q143 Marks
In 2017, the population of Egypt was 97500000. Write this population in standard form.
- (a)In 2017, the population of Egypt was 97500000. Write this population in standard form.[1]
- (b)The population density of a country is the number of people per square kilometre. In 2017, the population of Indonesia was 2.62×10⁸, correct to 3 significant figures. The area of Indonesia is 2×10⁶ km², correct to 1 significant figure. Calculate an estimate for the population density of Indonesia.[2]
Mark scheme
Marking points from the official mark scheme (May/June 2020). The mark or mark type is shown in brackets.
- [1] 9.75 × 10⁷
- [2] 130 or 131 or 150 nfww
- M1 for 2.6[2] × 10⁸ ÷ 2 × 10⁶ or for 3 × 10⁸ ÷ 2 × 10⁶
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