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GATE 2024 CS (CS2) – Question 5

General Aptitude · Analytical Aptitude: Logical Reasoning and Deduction · 1 mark · Multiple choice

In the sequence 6, 9, 14, $x$, 30, 41, a possible value of $x$ is

  1. 25
  2. 21
  3. 18
  4. 20

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Show answer and explanation

Correct answer: (B) 21

Explanation

Differences are 3, 5, then 7, 9, 11: 14+7 = 21, 21+9 = 30, 30+11 = 41. So x = 21.