Question

At noon, a tank contained 20 cm of water. After several hours, it contained 18 cm of water. What is the

percent decrease of water in the tank?
The percent decrease of water in the tank is
%.​

Answer 1

10%

Explanation:

Percentage decrease = Difference/Original value

So,

Percentage decrease

`= (2)/(20) * 100 \\ = 2 * 5 \\ = 10`

So there fore the percentage decrease is 10%