A boat carrying a large number of stones is floating in a water tank. What will happen to water level if the stone are unloaded into water?

Options

A. increase
B. remains same
C. decreases
D. data is insufficient

Answer

C

Explanation

Let weight of boat = W and weight of stone =w
Assuming density of water `=1 gc c^(-1)`
Volume of water displaced initially =(w+W)
Later, volume displaced `=(W+(w)/(rho)) (rho`= density of stones)
`implies` Water level comes down.