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3 years ago

8

A new type of pump can drain a certain pool in 3 hours. An older pump can drain the pool in 9 hours. How long will it take both

pumps working together to drain
the pool?

2 answers:

stepladder [879]3 years ago

7 0

Together the pool can be drained in 2 hours and 18 minutes.
Or if im correct 4.5 hours

ale4655 [162]3 years ago

6 0

Answer: Together the pool can be drained in 2 hours and 18 minutes.

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