Task: Question Answering
Input (English): Problem: rs . 2500 is divided into two parts such that if one part be put out at 5 % simple interest and the other at 6 % , the yearly annual income may be rs . 130 . how much was lent at 5 % ? 
Options: a ) 2000 , b ) 2777 , c ) 2688 , d ) 1000 , e ) 2871
Output (English): a