Question

Aashutosh can cover a certain distance in 84 min by covering 2/3rd of distance at 4 km/h and the rest at 5 km/h. Find the total distance. 

Answer 1

let the total distance=d km
firstly he cover the distance by the speed of 4 km/h
so
2d/3=4×84/60
2d/3=5.6
d=5.6×3/2=8.4 km

Answer 2

Total distance is 6 km