The population of a city increased at the rate of 20 % every year for the last three years. If the present population is 203,904 , then what was the population of the city 3 years ago?

Question

The population of a city increased at the rate of 20 % every year for the last three years. If the present population is 203,904 , then what was the population of the city 3 years ago? (A) 119,000 (B) 118,000 (C) 117,000 (D) 116,000

Tardigrade Admin · Accepted Answer

(i) Let the original population be x and proceed. (ii) Use depreciation formula, A=P(1+(R/100))n, where A=203,904, R=20 and n=3 years. Find p.

Q. The population of a city increased at the rate of $20%$ every year for the last three years. If the present population is 203,904 , then what was the population of the city 3 years ago?

119,000

118,000

117,000

116,000

(i) Let the original population be $x$ and proceed.
(ii) Use depreciation formula, $A = P (1 + \frac{R}{100})^{n}$ , where $A = 203, 904, R = 20$ and $n = 3$ years. Find $p$ .

Q. The population of a city increased at the rate of 20% every year for the last three years. If the present population is 203,904 , then what was the population of the city 3 years ago?