Task: Question Answering
Input (English): Problem: the population of a town increased from 1 , 25,000 to 1 , 50,000 in a decade . the average percent increase of population per year is : 
Options: a ) 4.37 % , b ) 2 % , c ) 6 % , d ) 8.75 % , e ) none of these
Output (English): b