Question
Mathematics Question on Surface Area of Cube, Cuboid and Cylinder
A large cube is formed by melting three solid metallic cubes of sides 3cm, 4cm and 5cm respectively. What is the ratio of the sum of the surface areas of the given cubes and that of the new cube?
A
2:1
B
3:2
C
25:18
D
27:20
Answer
25:18
Explanation
Solution
The correct option is (C): 25:18.