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Q : A hollow iron pipe is 21 cm long and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is :A : 3.669 kgB : 3.966 kgC : 3.600 kgD : 3.696 kg |
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Answer» 3.696............................. |
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