Q. The ratio of the areas of two circles is 49 : 121. The ratio of their circumferences is:

  • (A) 49 : 121
  • (B) 7 : 11
  • (C) 14 : 22
  • (D) 11 : 7
✅ Correct Answer: (B) 7 : 11
Explanation: Area ∝ r². Radius ratio = 7 : 11. Circumference ∝ r.

Published by Mahesh Chandra ⭐ 7.32K Points at 16-Jul-2026 05:31 am in Math

Explanation by: Mahesh Chandra
Area ∝ r². Radius ratio = 7 : 11. Circumference ∝ r.

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