Question

At 8:00 A.M., Brittany started filling a 3,600-gallon pond. At 10:00 A.M., she had filled 1,800 gallons. At what time will the pond be full? The pond will be full at

Answer 1

The size of the gallon is 3600 gallon . From 8 am to 10 am she had filled 1800 gallons. This means she fill it at the rate of 1800/2 =900 gallons per hour .

Therefore,

$\begin{gathered} 900\text{ gallons = 1 hour} \\ 3600\text{ gallons =}\frac{3600}{900}=\text{4 hours} \\ \text{The whole gallons will be filled in 4 hours .} \end{gathered}$

The pond will be filled at 12 pm(8 + 4hours).