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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
PS-QT
B
KN-LO
C
GJ-HK
D
DH-FP
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
DH-FP
[Cluster Logic Analysis]: We must map the forward progression of the letters from the first pair to the second pair based on their numerical positions in the al......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Reasoning
Chapter -
Ref. Topic Odd One Out
Pg. No -
💡 Analysis & Explanation
Introduction ▼
[Cluster Logic Analysis]
We must map the forward progression of the letters from the first pair to the second pair based on their numerical positions in the alphabet. ▼
[Pattern Checking]
1. PS-QT ▼
P(16) -> Q(17) is +1; S(19) -> T(20) is +1.
2. KN-LO ▼
K(11) -> L(12) is +1; N(14) -> O(15) is +1.
3. GJ-HK ▼
G(7) -> H(8) is +1; J(10) -> K(11) is +1.
[Outlier Detection] ▼
In the first three options, both letters uniformly advance by exactly one step (+1, +1).
4. DH-FP ▼
D(4) -> F(6) is +2; H(8) -> P(16) is +8. This completely breaks the established +1 sequence rule.
Conclusion ▼
DH-FP is the definitive odd one out.
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