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  3. 9th Class
  4. Mental Ability
  5. Cube and Dice

9th Class Mental Ability Cube and Dice Question Bank Cubes and Dice

  • question_answer
    Two positions of a cuboid are shown below. When the three dots will be on the top face, then how many dots will be at the bottom face?  

    A)  1                    

    B)  4                                

    C)  5                                

    D)  6    

    Correct Answer: C

    Solution :

     : The number 2 is common to both the figures. We assume the cuboid in figure (ii) to be rotated so that 2 appears at the same position as in figure (i) i.e. on the RHS face and the numbers 6 and 3 move to the faces hidden behind the numbers 1 and 5 -respectively, [in fig. (i)] Then, the combined figure will have 1 opposite 6 and 5 opposite 3. Thus, when 3 will appear on the top, then 5 will appear at the bottom.


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