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     7 years ago  

    Thanks @roborton .
    already want to answer .
    But the answer is not right . Hehee

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     7 years ago  

    I wonder which one is right!

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     7 years ago  

    the correct answer has been answered by @Herawaty @Roborton.

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      [-]
       7 years ago  

      But there is no way for the coffee to flow through to number 4, it is closed at the tank!

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       7 years ago  

      Thank you friends already want to answer it. then the correct answer is Number 5 tanking right, while number 7 is closed. the tank to the left closed both numbers 9 & 4 closed.

      @Roborton dan @herawaty.
      😊