If the sides of two cubes are in the ratio 3: 1 the ratio of their total surface area is?	Choose the correct choice from the following choices:  A) 3:1  B) 8:1  C) 9:1  D) 12:1  E) 9:1
a1 : a2 = 3 : 1   6 a12 : 6 a22 = 9: 1   ANSWER:9:1
<result>C</result>
If the sides of two cubes are in the ratio 3: 1 the ratio of their total surface area is?