Out of the given options, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different from the rest.

1. A

   WZD

2. B

   FIM

3. C

   DGK

4. D

   NQT

Appeared in: DSSSB -28 August 2019 (Shift-2)

Explanation

• The correct option, NQT, is the only one that follows a '+3, +3' pattern of alphabetical progression.
• The letters are N (14), Q (17), and T (20).
• The difference between N and Q is 17 - 14 = 3.
• The difference between Q and T is 20 - 17 = 3.
• This consistent '+3' jump makes it different from the other options which follow a '+3, +4' pattern.

Why Other Options Were Wrong

• Option A: This option follows the common pattern of '+3, +4'. W (23) + 3 = Z (26); Z (26) + 4 = D (4, after wrap-around).
• Option B: This option follows the common pattern of '+3, +4'. F (6) + 3 = I (9); I (9) + 4 = M (13).
• Option C: This option follows the common pattern of '+3, +4'. D (4) + 3 = G (7); G (7) + 4 = K (11).

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Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning: Identifying the odd one out in a letter series as background academic context rather than a clinical decision trigger.
• This question tests logical and analytical reasoning, a crucial skill for nurses in clinical problem-solving and decision-making.
• Nurses often need to identify patterns and anomalies in patient data (like vital signs or lab results) to spot potential health issues, similar to finding the 'odd one out' in this question.
• What if? If option D was 'NQU' instead of 'NQT', its pattern would be N(14) -> Q(17) -> U(21), which is +3, +4. In that case, all four options would follow the same pattern, and the question would be invalid.

How to Approach the Question

• First, understand the task: you need to find the one option that doesn't fit the pattern of the other three.
• Convert the letters in each option into their numerical positions in the alphabet (A=1, B=2, C=3...).
• For each option, calculate the difference between the numerical values of the consecutive letters.
• Compare the patterns of differences you found for all four options.
• Identify the option whose pattern of differences is unique.
• Select that unique option as the answer.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning: Identifying the odd one out in a letter series.
• Stem keywords: odd one out, different from the rest, letter series
• Lead-in keywords: NOT like the other three, different
• Negative lead-in flag: NOT changes the reasoning strategy; look for the exception or incorrect statement rather than the true statement.

Question ID

QCtQBHY17j4s4KLVBlCsto

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