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Q:

There are two inlets A and B connected to a tank. A and B can fill the tank in 32 h and 28 h, respectively. If both the pipes are opened alternately for 1 h, starting with A, then in how much time (in hours, to nearest integer) will the tank be filled? 

  • 1
    22
  • 2
    30
  • 3
    36
  • 4
    24
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Answer : 2. "30"

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