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A hollow cube of size 5cm is taken , with the thickness
of 1cm . it is made of smaller cubes of size 1cm . if the
outer surface of the cube is painted how many faces of the
smaller cubes remain unpainted?
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Answer Posted / sandeepb
total small cubes formed=125
no of faces of all small cubes=125*6=750
original cube is painted
on each face of orginal cube 5*4=25 faces of small cube
so total faces painted=25*6=150
unpainted faces=750-150=600
| Is This Answer Correct ? | 32 Yes | 65 No |
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