Task: Question Answering
Input (English): Problem: a boy goes to his school from his house at a speed of 3 km / hr and returns at a speed of 2 km / hr . if he takes 5 hours in going and coming . the distance between his house and school is ? 
Options: a ) 3 , b ) 4 , c ) 6 , d ) 5 , e ) 7
Output (English): c