A water tank of height H, completely filled with water is placed on a level ground. It has two holes one at a depth h from top and the other at height h form its base. The water ejecting from both holes

Velocity of water coming out from hole I = v1 = 2ghVelocity of water coming out from hole B= v2 = 2g(H-h)Time taken by water to reach the ground from hole I= t1 = 2(H-h)gTime taken by water to reach the ground from hole B= t2 = 2hgObviously, range on the ground for both is the same∴ R = v1t1 = v2t2 = 2gh(H-h)