The population of a village has increased annually at the rate of 40%. If at the end of 3 years it is 6860 the population in the beginning of the first year was?

3000 3500 2500 2600

2500

Let the population in starting = P 40% = \(\frac{2}{5}\) ATQ, ⇒ P × \(\frac{7}{5}\) × \(\frac{7}{5}\) × \(\frac{7}{5}\) = 6860 (After 3 year) ⇒ P =  6860 × \(\frac{5}{7}\) × \(\frac{5}{7}\) × \(\frac{5}{7}\) ⇒ P = 2500