Two colurs red and blue are used to paint a cube.Red is is painted on three faces
Answers
Answer:
two opposite faces have red paint on them, no matter which face we paint red, the other three faces will be blue in color. Now, three adjacent faces have the color red and the other three adjacent faces will have the color blue. Since, both a & b are sufficient, the answer is D. Hope that makes it clear.
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Two colors red and black are used to paint a cube. Red is painted on three faces, each of which is adjacent to the other two and, black is painted on the remaining faces. Assume that one can see exactly three faces when the cube is kept on a plane. What is the total number of ways in which the black color is not seen at all when the cube is kept on a table?
Answer:
The total number of ways in which the black color is not seen at all when the cube is kept on a table is 3.
Step-by-step explanation:
We are given that two colors red and black are used to paint a cube. Red color is is painted on the three faces.
We need to find the number of ways in which the black color is not seen at all when the cube is kept on a table.
Total no of faces= 6
No. of faces colored black = 3
No. of faces colored red = 3
So, number of ways in which the black color is not seen at all when the cube is kept on a table = total faces- black faces = 6 - 3.
Therefore, the total number of ways in which the black color is not seen at all when the cube is kept on a table is 3.
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