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Home Non Verbal Reasoning Cubes and Dice See What Others Are Saying!
  • Question
  • How many of the cubes have at least 2 faces painted?


  • Options
  • A. 48
  • B. 44
  • C. 12
  • D. None of these

  • Correct Answer
  • 48 

    Explanation

    Out of 6 faces of 5 faces are exposed and those were painted.
    Number of vertices with three faces exposed (Painted) is 4
    Number of vertices with 2 faces exposed (Painted) is 4
    Number of vertices with 1 faces exposed (Painted) is 0
    Number of vertices with 0 faces exposed (Painted) is 0
    Number of sides with 2 sides exposed (Painted) is 8
    Number of sides with 1 sides exposed (Painted) is 4
    Number of sides with no sides exposed (Painted) is 0
    From the above observation:
    Number of cubes with 3 faces Painted is 4
    Number of cubes with 2 faces Painted is given by sides which is exposed from two sides, out of 8 such edges 4 vertical edges will give us 6 cubes per edge and 4 edges from top surface will give us 5 such cubes from each edge and required number of cubes is 6 x 4 + 4 x 5 = 44.
    Number of cubes with 1 face Painted is given by faces which is exposed from one sides four vertical faces will give us 6 x 5 = 30 cubes per face and top face will give us 5 x 5 = 25 and required number of cubes is 30 x 4 + 25 x 1 = 145
    Number of cubes with 0 face Painted is given by difference between total number of cubes - number of cubes with at least 1 face painted = 343 - 4 - 44 - 145 = 150
    In other words number of cubes with 0 painted is 6 x 5 x 5 = 150
    From the above explanation number of the cubes with 0 faces painted is 150.
    From the above explanation number of the cubes with at least 2 faces painted is 44 + 4 = 48.


  • More questions

    • 1. Choose a figure which would most closely resemble the unfolded form of Figure (Z).


    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 2. 
      How many cubes/blocks are there in below figure?

    • Options
    • A. 8
    • B. 9
    • C. 10
    • D. 11
    • Discuss
    • 3. Select the one which is different from the other three responses

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 4. 

      If a mirror is placed on the line MN, then which is the right image of the given figure?

       


    • Options
    • A. 1
    • B. 2
    • C. None
    • D. 4
    • Discuss
    • 5. 

      Select the alternative which represents three out of the five alternative figures which when fitted into each other would form a complete square.


    • Options
    • A. 1,3,4
    • B. 1,4,5
    • C. 1,2,5
    • D. 1,2,4
    • Discuss
    • 6. Select the one which is different from the other three responses

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 7. Select the one which is different from the other three responses

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 8. Select the one which is different from the other three responses

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 9. In each of the following questions which of the answer figures is exactly the mirror image of the question figure when the mirror is held at the given point

    • Options
    • A. .
    • B. .
    • C. .
    • D. .
    • Discuss
    • 10. How many lines of symmetry does a Pentagon have?

    • Options
    • A. 4
    • B. 5
    • C. 6
    • D. 0
    • Discuss


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