If three pumps have rates of A=150 GPH, B=250 GPH, and C=500 GPH, what is their average pumping rate?

To find the average pumping rate of the three pumps, you need to sum the individual rates of each pump and then divide that total by the number of pumps.

The rates of the three pumps are as follows:

• Pump A = 150 GPH

• Pump B = 250 GPH

• Pump C = 500 GPH

First, calculate the total pumping rate:

150 GPH + 250 GPH + 500 GPH = 900 GPH

Next, since there are three pumps, divide the total pumping rate by the number of pumps to find the average:

900 GPH ÷ 3 = 300 GPH

Therefore, the average pumping rate is 300 GPH, which justifies that this is the correct answer. Understanding how to calculate averages is crucial in evaluating the performance of multiple pumps in sewage treatment systems, as it helps in optimizing operations and ensuring that treatment processes function efficiently.