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1. A pipe can fill a tank in 64 minutes and another can empty it in 32 minutes. If the tank is already half full and both pipe opened together, the tank will be--

  • A. filled in 32 minitues
  • B. filled in 32 minitues
  • C. filled in 32 minitues
  • D. filled in 32 minitues

Answer: Option B

Explanation:

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