Question

A farmer has a silo in the shape of a rectangular prism. The silo can hold 7200 cubic feet of grain. If the base of the silo has an area of 144 square feet, how high is the silo?

Answer 1

Formula:

If l, w and h be the length, width and height of a rectangular prism, then its volume is

V = lwh and area of base, A = lw

Given:

• Volume of the silo, V = 7200 cubic feet
• Area of the base, A = 144 square feet

To find: Height of the rectangular silo = ?

Solution:

We know the formula,

V = lwh

or, V = A * h

or, 7200 = 144 * h

or, h = 7200 / 144

or, h = 50

Answer: The height of the silo is 50 feet.