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Q:

A hollow copper pipe is 22 cm long and its external diameter is 28 cm. If the thickness of the pipe is 3 cm and iron weighs 8.5 g/cm3 , then the weight of the pipe is closest to:

  • 1
    34 kg
  • 2
    44 kg
  • 3
    14 kg
  • 4
    24 kg
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Answer : 2. "44 kg"

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