The ratio of the volumes of two cubes is 512 : 729. What is the ratio of their total surface areas?  Select the correct option:
A) 1:22	B) 81:12	C) 41:46	D) 41:19	E) 84:12
Ratio of the sides = ³√512 : ³√729   = 8 : 9   Ratio of surface areas = 82:92   = 41:46   Answer: 41:46
<result>C</result>
The ratio of the volumes of two cubes is 512 : 729. What is the ratio of their total surface areas?