The ratio of the volumes of two cubes is 729 : 1331. What is the ratio of their total surface areas? Options: A . &nbsp81 : 121 B . &nbsp9 : 11 C . &nbsp729 : 1331 D . &nbsp27 : 121 E . &nbspNone of these

The ratio of the volumes of two cubes is 729 : 1331. What is the ratio of their

Question

The ratio of the volumes of two cubes is 729 : 1331. What is the ratio of their total surface areas?

Answer: Option A

Ratio of the sides = ³√729 : ³√1331 = 9 : 11 Ratio of surface areas = 9² : 11² = 81 : 121

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