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Question

Which cube given in the options CANNOT be made using the following sheet?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is

To determine which cube cannot be formed from the given sheet, we need to understand the arrangement of faces in the sheet and how they will appear when folded into a cube.

From the unfolded cube (net), we can observe the following face arrangements:

  • The opposite faces on a cube from this net are:
    • Black square is opposite Black square.
    • Triangles are opposite each other.

Let's examine each option to see if they can be formed from the given net:

This cube is possible because it does not place opposite faces next to each other.

This arrangement is not possible. The net shows that two black squares are opposite each other; hence, they cannot be adjacent as shown in this figure.

This cube is possible because it respects the opposite face placement from the net.

This cube is also possible as it does not place opposite faces next to each other.

Therefore, the correct answer is:

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Similar Questions

  1. Three different positions of the same dice (figures 1, 2, and 3) are shown. Which digit is on the face opposite to the one having 5?

    1)

     

    2)

     

    3)

     

  2. Four different positions of the same dice are shown. Select the letter that will be on the face opposite to the one having the letter F. 

  3. Two different positions of the same dice are shown. Select the number of dots that will be on the face opposite to the one with 2 dots.

  4. A cube is made by folding the given sheet. In the cube so formed, what would be the letter on the opposite side of the letter A?

  5. Two positions of a cubical block with faces A, B, C, D, E and F are shown below. When F is at the top which face will be at the bottom?

  6. Three different positions of the same dice are shown. Select the pattern that will be on the face opposite to the one with the triangle.

  7. The following paper cutting is folded along the lines to make a cubical box. Select the correct image of the resulting box from among the options. 

  8. If a cube of $3^{''} \times 3^{''} \times 3^{''}$ is painted on all sides and then cut into 27 smaller cubes of $1^{''} \times 1^{''} \times 1^{''}$, then how many such smaller cubes will be there that are painted only on two sides?
  9. Four different positions of the same dice are shown. Select the number that will be on the face opposite to the one having 5.


     

  10. Two positions of a rotated cube are shown below.

    Which shape will be at the bottom, when   is on the top?


Important Questions from Cube and Dice

  1. A cube of side 80 cm is painted yellow on all the faces and then cut into smaller cubes of sides 8 cm each. Find the number of smaller cube having all the three faces painted.

  2. A cube of side 49 cm is painted purple on all the faces and then cut into smaller cubes of sides 7 cm each. Find the number of smaller cubes having only one face printed.

  3. A cube of side 18 cm is painted yellow on all the faces and then cut into smaller cubes of sides 3 cm each. Find the number of smaller cubes that have only two faces painted.

  4. A cube of side 12 cm is painted green on all the faces and then cut into smaller cubes of sides 2 cm each. Find the number of smaller cubes that have only one face painted.

  5. Four friends J, Q, B and Z rolled the dice in alphabetical order.

    The scores were:

    1st round: 3, 2, 5, 2

    2nd round: 1, 5, 1, 4

    3rd round: 4, 2, 1, 1

    If each point on the dice would get 10 points, who won the maximum points after 3 rounds?

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