Task: Question Answering
Input (English): Problem: a boatman selling a boat along river flow . if he sell boat in steal water at 3 m / sec and flow of river is 2 m / sec . how much time he will take to sell 100 m . 
Options: a ) 30 , b ) 10 , c ) 15 , d ) 20 , e ) 25
Output (English): d