The ratio of the volumes of two cubes is 343 : 512. What is the ratio of their total surface areas?  Choose the correct choice from the following answers
A) 12:24 B) 8:16 C) 45:25 D) 18:56 E) 49:64
Ratio of the sides = Â³âˆš343 : Â³âˆš512   = 7 : 8   Ratio of surface areas =49:64   Answer: 49:64
<result>E</result>
The ratio of the volumes of two cubes is 343 : 512. What is the ratio of their total surface areas?