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 option.
A) 6 km  B) 8 km  C) 9 km  D) 11 km  E) 12 km
Let total distance =D=D   Distance travelled at 4 kmph speed =(23)D=(23)D   Distance travelled at 5 kmph speed =(1−23)D=(13)D=(1−23)D=(13)D   Total time =1 hr 24 min = (60+24) min =8460=8460 hr =2115=2115 hr   We know,   Time=DistanceSpeedTime=DistanceSpeed   Total time   2115=2/34D+1/35D2115=2/34D+1/35D   2115=2D12+D152115=2D12+D15   84=14D84=14D   D=6 km   Option 6 km is correct
<result>A</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?