Task: Question Answering
Input (English): Problem: a man travelled from the village to the post - office at the rate of 25 kmph and walked back at the rate of 4 kmph . if the whole journey took 5 hours 48 minutes , find the distance of the post - office from the village 
Options: a ) 20 , b ) 87 , c ) 276 , d ) 198 , e ) 171
Output (English): a