Question:
In the figure below, X and Y are identical rectangular tanks. X has a square base of side 16 cm and a height of 64 cm.
At first, X was completely filled with water and Y was empty. John poured the water from X to Y, without spilling, until the height of the water level in X became 22 cm.
(a) How much water was there in Y in the end?
(b) Find the height of water in Y in the end.