Mathematics · Mensuration

A hollow iron pipe is 21 cm long and its external diameter is 10 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

14.752 kg✓
247.52 kg
3475.2 g
44.520 kg

Correct answer

4.752 kg

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A hollow iron pipe is 21 cm long and its external diameter is 10 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:

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A hollow iron pipe is 21 cm long and its external diameter is 10 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is:

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