Required Mathematical Intelligence

Chapter 27 Water Surface Changes
In a basin filled with water, there is a small box floating on the water, and a stone is placed in the box.Please think about it, if you take the stone out of the small box, will the water level in the basin rise?Or will it be lowered?

[Answer: The volume of water displaced by the stone in the box is the volume of water of the same weight as the stone.When the stone is taken out of the box, the volume of water displaced is only the volume of the stone.Obviously, the volume of the former is larger than that of the latter, so the water level will drop. ]
(End of this chapter)