Percentages · Question 22 · Medium

The population of a village decreases by 10% every year. If its present population is 72,900, what was it 2 years ago?

  1. 87,480
  2. 88,200
  3. 90,000
  4. 81,000
Answer and explanation

Answer: C. 90,000

Explanation: Population 2 years ago × 0.9 × 0.9 = 72,900, so it was 72,900 ÷ 0.81 = 90,000.

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