Task: Question Answering
Input (English): Problem: a sum of money deposited at c . i . amounts to rs . 3000 in 3 years and to rs . 3600 in 4 years . find the rate percent ? 
Options: a ) 25 % , b ) 5 % , c ) 10 % , d ) 15 % , e ) 20 %
Output (English): e