A man can cover a distance in 1hr 24min by covering 2/3 of the distance at 4 km/h and the rest at 5km/h. The total distance is
Choose the correct choice from the following.
A) 5km B) 6km C) 7km D) 8km E) 9km
Distance = 2/3S   distance=1-2/3S=1/3S   21/15 hr=2/3 S/4 + 1/3s /5   84=14/3S * 3   S= 6km   Answer : 6km
<result>B</result>
A man can cover a distance in 1hr 24min by covering 2/3 of the distance at 4 km/h and the rest at 5km/h. The total distance is