Task: Question Answering
Input (English): Problem: two boys starts from the same place walking at the rate of 4.5 kmph and 5.5 kmph respectively in the same direction . what time will they take to be 9.5 km apart ? 
Options: a ) 9.5 , b ) 5.5 , c ) 8.5 , d ) 9.6 , e ) 9.7
Output (English): a