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CompetitiveQuantitative AptitudePipes and CisternPipes and Cistern
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$A$ water tank has three taps $A$,$B$ and $C$. Tap $A$,when opened,can fill the water tank alone in $4$ $hours$. Tap $B$,when opened,can fill the water tank alone in $6$ $hours$. Tap $C$,when opened,can empty the water tank alone in $3$ $hours$. If taps $A$,$B$ and $C$ are opened simultaneously,how long will it take to fill the tank completely? (in $hours$)

  • A
    $10$
  • B
    $8$
  • C
    $18$
  • D
    $12$
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Pipes and Cistern

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Pipes and Cistern

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