Mathematics · Mensuration

A cylindrical rod with a volume of 75π cm3 is melted and recast into a hollow cylindrical pipe with an inner radius of 1 cm and outer radius of 2 cm. What will be the length of the new pipe?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

125 cm✓
235 cm
332 cm
430 cm

Correct answer

25 cm

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A cylindrical rod with a volume of 75π cm3 is melted and recast into a hollow cylindrical pipe with an inner radius of 1 cm and outer radius of 2 cm. What will be the length of the new pipe?

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A cylindrical rod with a volume of 75π cm3 is melted and recast into a hollow cylindrical pipe with an inner radius of 1 cm and outer radius of 2 cm. What will be the length of the new pipe?

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