The population of a village increases by 0.2% in the first year, it increases by 0.4% in the second year, and due to some disease, it decreases by 0.4% in the third year. What will be its population after 3 years, if at the beginning of the first year it was 2000 (rounded off to two decimal places)?
Show answer & explanation
Correct answer: B
Explanation
The Correct answer is option 2 i.e. 2003.97.
At the beginning of the first year the population of a village = 2000
First-year increase of 0.2% = 2/1000 = 1/500 = 501/500
Second-year increase of 0.4% = 4/1000 = 1/250 = 251/250
Third-year decrease of 0.4% = 4/1000 = 1/250 = 249/250
After the third year the population of the village = 2000 × × × = 2003.97