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Byju's Answer
Standard IX
Chemistry
Atoms
How many cube...
Question
How many cubes have two faces painted?
A
102
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B
72
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C
65
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D
41
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Solution
The correct option is
A
72
Number of cubes having two faces coloured
=
12
(
A
a
−
2
)
=
12
(
8
1
−
2
)
=
72
So the answer is (2)
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