If the length of the sides of two cubes are in the ratio 6:1, what is the ratio of their total surface area?	Select: A) 6:1 B) 12:1 C) 24:1 D) 36:1 E) 72:1
Let x be the length of the small cube's side.   The total surface area of the small cube is 6x^2.   The total surface area of the large cube is 6(6x)^2=216x^2.   The ratio of surface areas is 36:1.   The answer is 36:1.
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If the length of the sides of two cubes are in the ratio 6:1, what is the ratio of their total surface area?