Q. The ratio of the total surface areas of two cubes is 9 : 25. The ratio of their volumes is:

  • (A) 3 : 5
  • (B) 9 : 25
  • (C) 27 : 125
  • (D) 81 : 625
βœ… Correct Answer: (C) 27 : 125
Explanation: Edge ratio = √(9 : 25) = 3 : 5. Volume ratio = 3³ : 5³ = 27 : 125.
Explanation by: Mahesh Chandra
Edge ratio = √(9 : 25) = 3 : 5. Volume ratio = 3³ : 5³ = 27 : 125.

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