Select the pair that follows the same pattern as that followed by the two set of pairs given below. Both pairs follow the same pattern. OKN–JFI GCF–BXA

Appeared in: RRB Nsg. Superintendent-2026 (Shift -2nd)

Explanation

The core logic is a consistent backward shift in the alphabet for each letter in the group.
The pattern identified in the example pairs (OKN–JFI and GCF–BXA) is that each letter in the second term is 5 positions behind the corresponding letter in the first term.
Applying this rule (Letter Position - 5) to the pair KGJ gives FBE.
K (11th letter) - 5 = 6th letter (F).
G (7th letter) - 5 = 2nd letter (B).
J (10th letter) - 5 = 5th letter (E).

Option B: The first letter does not match the pattern. K (11) minus 5 is F (6), not E (5).
Option C: The second letter does not match the pattern. F (6) minus 5 is A (1), not B (2).
Option D: The first letter does not match the pattern. K (11) minus 5 is F (6), not E (5). Additionally, the second letter is also incorrect as F(6) minus 5 is A(1), not A(1).

Visual 1: Infographic - An image of the English alphabet laid out with its corresponding numerical positions (A=1, B=2, etc.). Arrows could demonstrate the '-5' jump from O to J, K to F, and so on, making the pattern visual and easier to grasp.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning - Letter Series Pattern Recognition as background academic context rather than a clinical decision trigger.
This question tests logical and analytical reasoning, a foundational skill for nurses.
Nurses use pattern recognition daily to identify changes in a patient's condition, interpret vital sign trends, and recognize adverse drug reactions.
Strong analytical skills help in making quick, accurate clinical decisions under pressure.

How to Approach the Question

First, analyze the relationship between the letters in the given example pairs (OKN–JFI, GCF–BXA).
Convert the letters to their numerical positions in the alphabet (A=1, B=2, ... Z=26) to identify a mathematical pattern.
For OKN to JFI: O(15) to J(10) is -5; K(11) to F(6) is -5; N(14) to I(9) is -5. The rule is a consistent -5 shift.
Verify this rule with the second pair, GCF to BXA: G(7) to B(2) is -5; C(3) to X(24) is -5 (circularly); F(6) to A(1) is -5. The rule is confirmed.
Apply the confirmed '-5' rule to each of the four options.
Select the option where every letter transformation correctly follows the '-5' rule.

Concept Tested & Keywords

Concept Tested: Logical Reasoning - Letter Series Pattern Recognition
Stem keywords: logical reasoning, letter series, pattern recognition, OKN–JFI, GCF–BXA
Lead-in keywords: Select the pair, same pattern
Negative lead-in flag: false

Q-UST6TYokpMq8CFPQE4fp

Practise the full RRB Nsg. Superintendent-2026 (Shift -2nd)

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