Task: Question Answering
Input (English): Problem: if john covers a certain distance in 1 hr . 24 min . by covering two third of the distance at 4 kmph and the rest at 5 kmph , then find the total distance . 
Options: a ) 9 km , b ) 2 km , c ) 1 km , d ) 6 km , e ) 7 km
Output (English): d