The population of a town is 8500. It increases by 20\% in the first year and by another 25\% in the second year. What would be the population of the town after 2 years?
(a)10950
(b)11950
(c)12550
(d)12750
(e)None of these
Answer
Answer (as printed): D
Explanation
Population after 2 years $=8500\left(1+\frac{20}{100}\right)\left(1+\frac{25}{100}\right)$ $$=\left(8500 \times \frac{6}{5} \times \frac{5}{4}\right)=12750 .$$
Explanation as extracted from the printed page; notation may be imperfect.