Mathematics · Mensuration
The difference between outer and inner surface area of a 14 cm long cylindrical pipe is 44 cm2. If the volume of metal used in the pipe is 99 cm3, then the ratio of outer to inner radii of the pipe is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13 : 2
- 25 : 4✓
- 32 : 3
- 44 : 5
Correct answer
5 : 4
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