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

  • question_answer
    How many cubes are painted on one face only?

    A) 8               

    B)              16

    C) 36             

    D)              54

    E) None of these

    Correct Answer: D

    Solution :

    Explanation Option [d] is correct. Number of cubes which are one side painted = 9 cubes at top + 9 cubes at bottom + (12 cubes/layer x 3 for middle layers) \[\therefore \] Total number of cubes with only one face painted \[= 9 + 9 + 12 \times  3 = 54.\]


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