A large cube is formed from the material obtained by melting three smaller cubes of side 3, 4 and 5 cm. What is the ratio of the total surface areas of the smaller cubes and the large cube?

A large cube is formed from the material obtained by melting three sma

1.	A large cube is formed from the material obtained by melting three smaller cubes of side 3, 4 and 5 cm. What is the ratio of the total surface areas of the smaller cubes and the large cube?
A.	\[2:1\]
B.	\[3:2\]
C.	\[25:18\]
D.	\[27:20\]
Answer» D. \[27:20\]

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A large cube is formed from the material obtained by melting three smaller cubes of side 3, 4 and 5 cm. What is the ratio of the total surface areas of the smaller cubes and the large cube?

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