Container A and B are identical containers with the same base area and height. Container A is filled to the brim with water while Container B is empty. After 224 cm³ of water from Container A is poured into Container B, the depth of water in Container B is ¹₄ the depth of water in Container A. If the height of Container B is 40 cm, what is the base area of Container B?
The depth of water is proportional to the volume of water.

After water from Container A is poured into Container B:

Volume of water in Container A : Volume of water in Container B
 4 : 1

1 u = 224

Total volume of Container B
= 4 u + 1 u
= 5 u
= 5 x 224
= 1120 cm³

Base area of Container B
= 1120 ÷ 40
= 28 cm²

Answer(s): 28 cm²