A cube of edge 6 cm is cut into cubes each of edge 1 cm. The ratio of the total surface area of one of the small cubes to that of the large cube is equal to:
Choices:	A) 1:25	B) 1:36	C) 1:52	D) 1:522	E) None
Sol.   Required ratio = 6 * 1 * 1 / 6 * 6 * 6 = 1/36 = 1:36.   Answer 1:36
<result>B</result>
A cube of edge 6 cm is cut into cubes each of edge 1 cm. The ratio of the total surface area of one of the small cubes to that of the large cube is equal to: