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GATE 2022 BT – Question 10

General Aptitude · Spatial Aptitude: Spatial Reasoning and Visualization · 2 marks · Multiple choice

Consider a cube made by folding a single sheet of paper of appropriate shape. The interior faces of the cube are all blank. However, the exterior faces that are not visible in the above view may not be blank. Which one of the following represents a possible unfolding of the cube?

source diagram and its labels are reproduced in the attached image.
  1. Option A in the figure
  2. Option B in the figure
  3. Option C in the figure
  4. Option D in the figure

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Show answer and explanation

Correct answer: (D) Option D in the figure

Explanation

Folding D and rotating its marked face makes the line vertical, the black face the top and the gray face the right. The extra plus mark lies on a hidden face.