Task: Question Answering
Input (English): Problem: in a kilometer race , if abhishek gives bharti a 40 m start , abhishek wins by 19 sec . but if abhishek gives bharti a 30 sec start , bharti wins by 40 m . find the time taken by bharti to run 5,000 m ? 
Options: a ) 150 sec , b ) 750 sec , c ) 450 sec , d ) 825 sec , e ) none of these
Output (English): b