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

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

**A. 81 : 121 (Correct)**

B. 9 : 11

C. 729 : 1331

D. 27 : 12

Ratio of the sides = ³√729 : ³√1331 = 9 : 11

Ratio of surface areas = 92 : 112 = **81 : 121**