Question

When a rock is completely submerged in water, kept in a cylinder of radius `3` inches, the water level rises by `1.5` inches. What is the volume of the rock?

Answer 1

Volume of rock is `13.5pi` cubic inches

Explanation:

When a rock is completely submerged in water, the level of water rises by the increase in the volume of water.

As the radius of cylinder is `3` inches and rise in level of water is `1.5` inches,

increase in volume of water is `pixx3^2xx1.5=13.5pi` cubic inches.

Hence, volume of rock is `13.5pi` cubic inches.