Sachin can cover a distance in 1hr 24 min by covering 2/3 of the distance at 4 kmph and the rest at 5 kmph. The total distance is?
Choose the correct choice from the following answers:
A) 8 km
B) 7 km
C) 5 km
D) 6 km
E) 4 km
dist travelled at 4 kmph speed = 2/3   dist at 5 kmph speed = (1-2/3)d=(1/3)d   tot time = 1 hr 24 min =(64+24) min=84/60hr=&gt;21/15 hr   time = dist/speed   21/15=2/3/4d+1/3/5d   d=6 km   ANSWER 6 km
<result>D</result>
Sachin can cover a distance in 1hr 24 min by covering 2/3 of the distance at 4 kmph and the rest at 5 kmph. The total distance is?