Math, asked by salma89, 7 months ago

A tank has to pipe x and y y empty the tank if only pipe act is open then the empty tank is filled in for 3 hours and if the pipes are opened then the tank is filled in 21 hours in how much time can the full tank emptied if only pipe why is open ??

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Answers

Answered by ChoudharyLakshit

0

Answer:

please mark it as brainliest

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