✔ Correct Answer: A. 3.696kg
The correct answer to the question “A hollow iron pipe is 21cm long and its external diameter is 8cm. If the thickness of the pipe is 1cm and iron weighs 8g/cm 3 , then the weight of pipe is :” is 3.696kg. This question belongs to Mathematics. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.
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