Question

A tank contained 40 gallons of water at first. Due to a leak at the bottom of
the tank, the amount of water in the tank decreased to 36 gallons after 1 hour. After
another hour, the amount of water in the tank was 32 gallons.
a) Find the percent decrease in the amount of water from 40 gallons to 36 gallons.
Round your answer to 1 decimal place. [2]

Answer 1

Dear student,

$$\begin{gathered} Initialamountofwater=40gallons \\ amountofwaterdecreasedto=36gallons \\ Reductioningallonsofwater=40-36=4gallons \\ \%decreaseinamoutofwater=\frac{4}{40}\times 100=10\% \end{gathered}$$

Regards