Q. The ratio of the volumes of two cubes is 1 : 27. The ratio of their total surface areas is:

  • (A) 1 : 3
  • (B) 1 : 6
  • (C) 1 : 9
  • (D) 1 : 27
✅ Correct Answer: (C) 1 : 9
Explanation: Edge ratio = 1 : 3. Surface area ratio = 1² : 3² = 1 : 9.

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

Explanation by: Mahesh Chandra
Edge ratio = 1 : 3. Surface area ratio = 1² : 3² = 1 : 9.

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