7th Class Mathematics Related to Competitive Exam Question Bank Cube and Dice

  • question_answer
    Select from the alternative, the box that can be formed by folding the sheet shown in figure (X)

    A) A only             

    B) A and C only

    C) A, C and D only          

    D) A, B, C and D

    Correct Answer: A

    Solution :

        When the sheet shown in fig. (X) is folded to from a cube, then the face bearing the dot lies opposite to the shaded face, the face bearing a circle (With '+' sign inside it) lies opposite to a blank face and the remaining two blank faces lie opposite to each other. Clearly, the cubes shown in figures (B) and (D) cannot be formed since they have the shaded face adjacent to the face bearing a dot and the cube shown in fig. (C) Cannot be formed since it shown all the three blank face adjacent to each other. Hence, only the cube shown in fig. (A) Can be formed.         


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