A sewage treatment plant has two inlet pipes to its settling pond. One pipe can fill the pond 3 times as fast as the other pipe, and together they can fill the pond in 12 hr. How long will it take the faster pipe to fill the pond alone?

x represents the number of hours it takes the faster inlet pipe, working alone, to fill the settling pond.

Transcribed Image Text:

Part of Job Rate Time Completed Faster Inlet Pipe 12 Slower Inlet Pipe 3x 12