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Q:

Water flows in to a tank 15 m.×10 m. through a rectangular pipe 2 m.×1.5 m. at 20 km./hr. In how much time will the water level in the tank rise by 3m.?

  • 1
    23 seconds
  • 2
    27 seconds
  • 3
    15 seconds
  • 4
    19 seconds
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Answer : 2. "27 seconds "

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