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GATE 2024 CS (CS1) – Question 10

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

The least number of squares to be added in the figure to make AB a line of symmetry is

Diagram for GATE 2024 CS (CS1) question 10
  1. 6
  2. 4
  3. 5
  4. 7

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Show answer and explanation

Correct answer: (A) 6

Explanation

The figure has 8 squares placed asymmetrically about line AB. Mirroring each square across AB and counting the missing mirror images gives a minimum of 6 additions.