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Class 10 Mathematics Medium Mcq English Medium

A cylinder (r=7 cm, h=20 cm) has volume 980p cm3. Find volume if radius doubles.

Question
A cylinder (r=7 cm, h=20 cm) has volume 980p cm3. Find volume if radius doubles.
1960p cm3
980p cm3
3920p cm3
7840p cm3
Answer
3920p cm3
Detailed Explanation
Volume depends on r². Doubling radius multiplies volume by 4, so the new volume is 3920p cm3. — Examisthan.com
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