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Reasoning
Odd One Out
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NTPC Graduate Tier 1 2025 Shift-3 📅 05 Jun, 2025

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

A
NQ-RM
B
NM-PO
C
SR-UT
D
UT-WV
Result Summary
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NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-3
Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
Correct Answer
NQ-RM
[Pattern Diagnostics]: Let us rigorously examine the interval logic linking the left cluster to the right cluster for the given alternatives, referencing standa......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Reasoning
Chapter -
Ref. Topic Odd One Out
Pg. No -
💡 Analysis & Explanation
Introduction ▼
[Pattern Diagnostics]
Let us rigorously examine the interval logic linking the left cluster to the right cluster for the given alternatives, referencing standard alphabetical sequence values. ▼
[Comparative Testing]
Option B ▼
NM-PO -> N(14) to P(16) is +2; M(13) to O(15) is +2. (Or treating them as pairs, N->M is -1, P->O is -1. Wait, let's look at the cross pattern. N(14) to M(13) is -1, P(16) to O(15) is -1).
Option C ▼
SR-UT -> S(19) to R(18) is -1, U(21) to T(20) is -1.
Option D ▼
UT-WV -> U(21) to T(20) is -1, W(23) to V(22) is -1.
[Deviation Isolation] ▼
In all cases (B, C, D), the internal structure of BOTH clusters in the pair features a strict '-1' backward alphabetical step (first letter to second letter).
However, in Option A (NQ-RM), N(14) to Q(17) is +3, and R(18) to M(13) is -5. This wildly deviates from the uniform subtraction logic.
Conclusion ▼
NQ-RM fails to mirror the structural rule present in the other options.
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