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GATE 2025 CY – Question 3

General Aptitude · Quantitative Aptitude: Arithmetic and Number Computation · 1 mark · Multiple choice

A $4\times4$ digital image has pixel intensities ($U$) as shown in the figure. The number of pixels with $U\le4$ is:

4 by 4 pixel-intensity grid.
  1. 3
  2. 8
  3. 11
  4. 9

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Correct answer: (C) 11

Explanation

The rows contain 4, 3, 2 and 2 entries no greater than 4, totaling 11.