Question:

CW, EU, GS, KO, MM, QI, ____

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For paired-letter series, examine each position independently. Often the first and second letters follow completely different patterns.
Updated On: Jun 12, 2026
  • SK
  • TG
  • SG
  • SL
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The Correct Option is C

Solution and Explanation

Concept: Analyze the first and second letters separately.

Step 1:
Study the first letters. \[ C,\ E,\ G,\ K,\ M,\ Q \] Alphabetical positions: \[ 3,\ 5,\ 7,\ 11,\ 13,\ 17 \] These are consecutive prime numbers. The next prime is \[ 19, \] which corresponds to \[ S. \]

Step 2:
Study the second letters. \[ W,\ U,\ S,\ O,\ M,\ I \] Positions: \[ 23,\ 21,\ 19,\ 15,\ 13,\ 9 \] The pattern decreases by 2, 2, 4, 2, 4,... Continuing, \[ 9-2=7. \] The \(7^{th}\) letter is \[ G. \]

Step 3:
Combine the results. First letter: \[ S \] Second letter: \[ G. \] Hence the required term is \[ \boxed{SG}. \]
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