A district has a population of 450,000 and an area of 150 square kilometres. What is its population density?
Answer and explanation
Correct answer: D. 3,000 people per sq km
- Step 1: Density = population / area. Step 2. 450,000 / 150 = 3,000 people per square kilometre. Answer: 3,000 people per sq km. Why not the others: 449,850 people per sq km: That subtracts the area from the population. 30,000 people per sq km: That is ten times the correct density. 67,500 people per sq km: That multiplies instead of dividing.
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