Mathematics (Syllabus D) 4024/21 — October/November 2023
Cambridge O-Level · Calculator · worked solutions for every part, with the mark scheme
Topics Algebra and Graphs · Mensuration · Number · Coordinate Geometry · Statistics · Trigonometry · +3 more
The population of a town is .
of the population are aged 18 and under.
Work out the number of people in the town aged over 18.
______
In a village, the ratio of the ages of the population is under 18 : 18 to 60 : over 60 = .
There are 890 people aged over 60.
Work out the total number of people in the village aged 60 and under.
______
In 2015, the population of a city was .
In 2020, the population was .
Calculate the percentage decrease in the population from 2015 to 2020.
______ %
The population of the city increased by between 1980 and 2015.
Calculate the population of the city in 1980.
______
The table shows the population and area of some countries.
| Country | Population | Area in |
|---|---|---|
| Bangladesh | ||
| Bahrain | ||
| Maldives | ||
| Lebanon |
Work out how many more people live in Bahrain than in Maldives.
Give your answer in standard form.
______
The population density of a country is the number of people per square kilometre.
Which of these countries has the highest population density?
Show how you decide.
______
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