Multiple choice

The population of a small village 2 years ago was 3,125. Due to migration to towns, it decreases every year at the rate of 4% per annum. Find the present population

  1. 2,980

  2. 2,880

  3. 2,890

  4. 2,900
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Population = 3125 * (1 - 0.04)^2 = 3125 * (0.96)^2 = 3125 * 0.9216 = 2880.

AI explanation

Using the formula for depreciation, the present population equals the initial population multiplied by (1 minus the rate divided by 100) raised to the number of years. Substituting the values gives 3125 multiplied by 0.96 squared, which is 3125 multiplied by 0.9216 to equal 2880. The required present population is 2880.

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