1.

A cube is coloured red on all faces. It is cut into 64 smaller cubes of equal size. Answer the following questions. How many cubes are there which have only one face painted?

Answer»

4
6
8
16

Solution :Since the cube is CUT into 64 smaller cubes, we can take its edge as 4 cm and that of the small cube edge 1 cm. So X= 4 and x = 1.
Cube with one face painted = `6(4-2)^(2)=24`.


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