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Question

A cube is painted red on two adjacent faces and on one opposite face, yellow on two opposite faces and green on the remaining face It is then cut into 64 equal cubes How many cubes have only one red and one green face?

A
4
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B
8
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C
12
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D
16
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Solution

The correct option is B 4
Three faces are painted red, 2 are yellow and one is green. As per the conditions given, the green face is adjacent with 2 red faces one on top and one on bottom. Therefore, there will be 4 cubes that will have one red and one green face. These 4 cubes will be the middle ones as the corner cubes will have another colour too.
Answer is Option A

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