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EEJ MAIN Aptitude QUESTION #10950
Question 1
In a visual pattern, a shape is reflected, then rotated 90° clockwise, then reflected again. If we start with the letter F, after all three operations, what is the result?
  • F rotated 90° clockwise
  • F rotated 90° anti-clockwise✔️
  • F rotated 180°
  • Mirror image of F rotated 90° anti-clockwise
Correct Answer Explanation

Let's track the operations step by step on the letter F:

  1. Reflect F (horizontal mirror, left-right): Gives ꟻ (reversed F)
  2. Rotate ꟻ by 90° clockwise: The reversed F rotates clockwise.
  3. Reflect again (horizontal mirror): This reverses the horizontal flip from step 2.

Two reflections + one rotation is equivalent to a net rotation. A reflection followed by a 90° rotation followed by another reflection = 90° rotation in the opposite direction (anti-clockwise).

Net result: F rotated 90° anti-clockwise.