Question

A cube of edge 8 cm is immersed completely in a
cuboidal vessel containing water. If the dimensions of
the vessel are 20 cm x 18 cm x 12 cm, find the rise in
the level of water in the vessel.​

Answer 1

volume of cube = 8^3 = 512 cm cubed

now this volume is to be represented in a rectangular vessel having 20 cm length and 18 cm breadth , inorder to find the rise of water H

20x18x H = 512
H = 512/360 = 1.42 cm