Difficulty: Medium
Correct Answer: FHIK
Explanation:
Introduction / Context:
This question tests your ability to detect consistent jumps in sequences of letters. Many alphabet series questions rely on fixed steps between letters, and one group that breaks the consistency is the odd one out.
Given Data / Assumptions:
Concept / Approach:
The strategy is to convert letters to numeric positions and compute the differences between adjacent letters. If three groups show the same constant difference and one group has an inconsistent pattern, that group is the odd one.
Step-by-Step Solution:
LNPR: L = 12, N = 14, P = 16, R = 18. Differences are +2, +2, +2.
KMOQ: K = 11, M = 13, O = 15, Q = 17. Differences are +2, +2, +2.
TVXZ: T = 20, V = 22, X = 24, Z = 26. Differences are again +2, +2, +2.
FHIK: F = 6, H = 8, I = 9, K = 11. Differences are +2, +1, +2, which is irregular.
Thus FHIK alone fails to maintain a constant +2 increment between all letters.
Verification / Alternative check:
A quick visual way is to write the letters of each group in order and mentally check whether you skip exactly one letter between each pair. In LNPR, KMOQ, and TVXZ, you always skip one letter each time. In FHIK, you skip one letter from F to H, then no letter from H to I, and then one letter from I to K. This mixed skipping confirms that FHIK breaks the pattern.
Why Other Options Are Wrong:
Common Pitfalls:
Students sometimes check only the first two letters of each group and assume the rest follow the same rule. FHIK starts with a +2 jump, which can mislead a quick observer. Always examine every pair of adjacent letters in the group to avoid missing a hidden irregularity.
Final Answer:
FHIK
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