Chapter:

Percentage

Distance between A and B is 72 km. Two men started walking from A and B at same time towards each or. The person who started from A traveled uniformly with average speed of 4 km/hr. The or man traveled with varying speed as follows: In first hour his speed 2 km/hr, in second hour it was 2.5 km/hr, in third hour it was 3 km/hr, and so on. When / where will y meet each or?