All the faces of a cube are painted with blue colour. Then it is cut into 125 small equal cubes.
How many small cubes will be formed having only one face coloured ?
Answer: Option E
No. of small cubes having only one face coloured = (5 - 2)2 x 6
= 9 x 6
How many small cubes will be formed having no face coloured ?
Answer: Option D
No. of small cubes having no face coloured = (x - 2)3
= (5 - 2)3
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