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Onepipefillsastoragepoolin20hours.Asecondpipefillsthesamepoolin15hours.Whenathirdpumpisaddedandallthreeareusedtofillthepool,ittakesonly6hours.Findhowlongittakesthethirdpipetodothejob(by itself)

1 Answer

4 votes

Answer:

yes

Explanation:

User Shafraz
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