Question

At​ noon, a tank contained 5in. of water. After several​ hours, it contained 3in. of water. What is the percent decrease of water in the​ tank?

Answer 1

The amount of decrease was 5 -3 = 2 inches,

Percent decrease = 2 /5 = 0.40 x 100 = 40%

Answer 2

I dont really know what this could be