Which of the following pairs is correctly matched?

Question

Examoogle · Accepted Answer

The correct answer is Option A: NQ-LP. Calculate the difference between letter positions in each pair. Three pairs follow the pattern -5, +4 (e.g., N(14)-5=I... Wait, check alphabetical gaps). Actually, identify the gap: N(14) to Q(17) is +3; L(12) to P(16) is +4. Look at all pairs: NQ (+3), LP (+4); FI (+3), DG (+3); DG (+3), BE (+3); IL (+3), GJ (+3). Wait, let's re-examine.

Step-by-Step Solution & Concepts:
Shortcut Trick: Calculate the difference between letter positions in each pair. Three pairs follow the pattern -5, +4 (e.g., N(14)-5=I... Wait, check alphabetical gaps). Actually, identify the gap: N(14) to Q(17) is +3; L(12) to P(16) is +4. Look at all pairs: NQ (+3), LP (+4); FI (+3), DG (+3); DG (+3), BE (+3); IL (+3), GJ (+3). Wait, let's re-examine.

Steps: Index Mapping: Convert letters to their standard numerical positions: N=14, Q=17; L=12, P=16; F=6, I=9; D=4, G=7; D=4, G=7; B=2, E=5; I=9, L=12; G=7, J=10.. Pattern Analysis: Calculate differences: NQ(17-14=+3), LP(16-12=+4); FI(9-6=+3), DG(7-4=+3); DG(7-4=+3), BE(5-2=+3); IL(12-9=+3), GJ(10-7=+3).. Conclusion: Pairs FI-DG, DG-BE, and IL-GJ all maintain a constant +3 difference for both clusters. NQ-LP has a +3 and a +4 difference, making it the unique odd pair.

Answer: A is correct because the pair NQ-LP consists of clusters with position differences of +3 and +4, whereas all other pairs consistently use a +3 difference.

Why options are wrong: B: FI-DG follows the +3, +3 pattern. C: DG-BE follows the +3, +3 pattern. D: IL-GJ follows the +3, +3 pattern.

Exam Tip: In alphabetical reasoning, always convert letters to numbers immediately. Differences of +1, +2, +3 are most common, but look for discrepancies in the second cluster if the first seems uniform.

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