Task: Question Answering
Input (English): Problem: a motorcyclist goes from bombay to pune , a distance of 160 kms at an average of 32 kmph speed . another man starts from bombay by car 2 ½ hours after the first , and reaches pune ½ hour earlier . what is the ratio of the speed of the motorcycle and the car ? 
Options: a ) 1 : 2 , b ) 2 : 5 , c ) 1 : 4 , d ) 1 : 1 , e ) 1 : 6
Output (English): b