Question

A water storage tank has the shape of a cylinder with diameter 14 ft. It is mounted so that the circular cross-sections are vertical. If the depth of the water is 12 ft, what percentage of the total capacity is being used

Answer 1

"85.7%" is the right answer.

Explanation:

According to the question,

The total capacity of water tank will be:

⇒
`v_1=A* 14`

The total volume of water will be:

⇒
`v_2=A* 12`

Now,

The percentage of total capacity will be:

=
`(100* v_2)/(v_1)`

=
`(v_2)/(v_1)* 100`

By putting the values, we get

=
`(A* 12)/(A* 14)* 100`

=
`85.7`%