DIRECTIONS: Select the related letters from the given alternatives.

LOM : NMK :: PKI : ?

Appeared in: DHS 2018 shift 1st

Explanation

The correct answer follows the specific alphabetical shift pattern derived from the first pair of letter groups.
The pattern is a +2 shift for the first letter, a -2 shift for the second letter, and a -2 shift for the third letter.
Applying this (+2, -2, -2) pattern to 'PKI' yields 'R' (P+2), 'I' (K-2), and 'G' (I-2).
Combining these results gives the final answer: RIG.

Option A: The last letter, H, results from a -1 shift from I (9th letter to 8th), which violates the established -2 pattern for the third letter.
Option B: The first letter, S, results from a +3 shift from P (16th letter to 19th), which violates the established +2 pattern for the first letter.
Option D: The middle letter, H, results from a -3 shift from K (11th letter to 8th), which violates the established -2 pattern for the second letter.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain This question tests logical reasoning, specifically the ability to identify and apply patterns in letter-based analogies as background academic context rather than a clinical decision trigger.
While not a clinical question, logical reasoning is a crucial skill for nurses.
It helps in interpreting patient data, recognizing patterns in symptoms, and making sound clinical judgments under pressure.
For example, a nurse might notice a pattern of vital sign changes preceding a patient's deterioration, allowing for early intervention.

How to Approach the Question

First, analyze the relationship between the first pair of letter groups (LOM and NMK).
Determine the shift in alphabetical position for each corresponding letter (1st to 1st, 2nd to 2nd, 3rd to 3rd).
It's helpful to write down the numerical position of each letter (L=12, O=15, M=13 and N=14, M=13, K=11).
Calculate the difference: N-L = 14-12 = +2; M-O = 13-15 = -2; K-M = 11-13 = -2. This reveals the pattern: +2, -2, -2.
Apply this exact pattern to the second group (PKI).
P(16)+2 = R(18); K(11)-2 = I(9); I(9)-2 = G(7).

Concept Tested & Keywords

Concept Tested: This question tests logical reasoning, specifically the ability to identify and apply patterns in letter-based analogies.
Stem keywords: LOM, NMK, PKI, analogy, related letters
Lead-in keywords: Select the related letters

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Practise the full DHS 2018 shift 1st

Attempt every question from this paper in a timed mock, then review the full solution for each one.