A boat floating in a water tank is carrying a number of large stones. If the stones are unloaded into water, what will happen to the water level?

Options

A. rises till half the number of stones are unladed and then begins to fall
B. remains unchanged
C. rises
D. falls

Answer

D

Explanation

e) When the stones are unloaded into water, the water level falls because the volume of the water displaced by stones in water will be less than the volumes of water displaced when stones are in the boat.