Q. The ratio of the volumes of two similar cuboids is 64 : 125. The ratio of their total surface areas is:
✅ Correct Answer: (A)
16 : 25
Explanation: Volume ratio = k³ ⇒ k = 4 : 5. Surface area ratio = k² = 16 : 25.
Explanation by: Mahesh Chandra
Volume ratio = k³ ⇒ k = 4 : 5. Surface area ratio = k² = 16 : 25.