Vikas can cover a distance in 1hr 24min by covering 2/3 of
the distance at 4 kmph and the rest at 5kmph.the total
distance is? Choose the correct choice from the following.
A) 8km  B) 6 km  C) 2km  D) 11km  E) 7km
Let total distance be S   total time=1hr24min   A to T :: speed=4kmph   diistance=2/3S   T to S :: speed=5km   distance=1-(2/3S)=1/3S   21/15 hr=(2/3 S)/4 + (1/3s) /5   84=(14/3S)*3   S=(84*3)/14*3   = 6km   Answer is 6 km.
<result>B</result>
Vikas can cover a distance in 1hr 24min by covering 2/3 of
the distance at 4 kmph and the rest at 5kmph.the total
distance is?