Q. The ratio of the volumes of two cubes is 1 : 27. The ratio of their total surface areas is:
✅ Correct Answer: (C)
1 : 9
Explanation: Edge ratio = 1 : 3. Surface area ratio = 1² : 3² = 1 : 9.
Explanation by: Mahesh Chandra
Edge ratio = 1 : 3. Surface area ratio = 1² : 3² = 1 : 9.