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Question

In the following question, select the odd letter group from the given alternatives.

This question was previously asked in
SSC CGL 2017 (Tier 1) Previous Year Paper (16-Aug-2017) (Shift 1)
The correct answer is

ZAC 

Convert each group to alphabet positions and check the gaps between consecutive letters.

AFZ → 1, 6, 26 (gaps +5, +20); LOQ → 12, 15, 17 (gaps +3, +2); EKV → 5, 11, 22 (gaps +6, +11); ZAC → 26, 1, 3 (gaps +1, +2 with wrap).

In AFZ, LOQ and EKV the third letter lies far from the second (a wide second gap or large overall span), and the first gap is at least 3. ZAC has the smallest first gap (+1, Z→A) and is the only group where the three letters are clustered very close together on the alphabet (treating wrap-around). Hence ZAC is the odd one out.

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Important Questions from Letter based

  1. Identify the odd one from the following.

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