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How many minimum number of colours will ...

How many minimum number of colours will be required to paint all the sides of a cube without the adjacent sides having the same colours ?

A

3

B

2

C

6

D

4

Text Solution

Verified by Experts

The correct Answer is:
A

Here we see that colours used for : Top and Bottom is Red, Front and back surface is Black. Right and Left surface is Green.
From the above figure, we find at least three colours required to colour the surfaces of the cube, so that adjacent faces have not same in colour.
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