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7th Class Mental Ability Related to Competitive Exam Question Bank Cubes and Dices

  • question_answer
    The minimum number of colours required to paint all the sides of a cube that no two adjacent faces may have the some colour is:

    A) 1   

    B)                          2

    C) 3        

    D)              4

    E) None of these

    Correct Answer: C

    Solution :

    Explanation Option [c] is correct. Adjacent faces are avoided for some colours, opposite faces may be provided with same colours. So as a cube is having 3 pair of faces, minimum number of colours required to paint all sides of cube = 3.      


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