The speed of the boat in still water is 5 Km/hr and the speed of the stream is 4 Km/hr. Boat takes 5 hr to travel downstream from point A to point B and then back to point A. Find the distance between A and B.

Vedic formula is :
Speed of the boat = u
Speed of the stream = v
time taken by the boat = t

Distance = ^{t(u2 - v2)}⁄_2u

Distance = ^{5(52 - 42)}⁄_{2 x 5}

put the values in it and then we will get distance from A to B 4.5Km