Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Geometry & MensurationArea, Perimeter and Volume
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.3.696 kgCorrect answer
- B.4.224 kg
- C.3.168 kg
- D.2.904 kg
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Practice these MCQs in the appQuick fact: The weight of the hollow iron pipe is 3.696 kg.