The population of a town increases 25% and 15% respectively in two consecutive years. After the growth the present population of the town is 1150. Then what is the population of the town 2 years ago? Pick:
A) 400
B) 500
C) 600
D) 700
E) 800

Rationale: explanation : formula : ( after = 100 denominator ago = 100 numerator ) 1150 * 100 / 125 * 100 / 115 = 800 answer : option e
Answer: E