WAEC 2022 Geography · Question 18

If the total population of a country is 75,000,000 and its total land area is 250,000km², what is its population density?

Options

A.30 persons per km²
B.300 persons per km²
C.350 persons per km²
D.500 persons per km²

Answer: B. 300 persons per km²

Explanation written with AI and checked against the answer key

Step 1: Analyze the question You are asked to find population density, which tells us how many people live in each square kilometre of land on average. Step 2: The concept Population density = Total population ÷ Total land area Step 3: Solution Population density = 75,000,000 ÷ 250,000 Cancel the zeros (divide both by 1,000): = 75,000 ÷ 250 Now divide: 250 × 300 = 75,000 So, population density = 300 persons per km² Step 4: Answer Tip: In density questions, cancel the common zeros first to make the division easier. Always check that your unit is "persons per km²". You can also quickly check your answer by multiplying back: 300 × 250,000 = 75,000,000 ✔.

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