Alphabet Pairs — Continue the Pattern AZ, GT, MN, ?, YB → Choose the correct missing pair.

Introduction / Context:
Paired-letter sequences usually feature a rule for the first letters and another (often mirrored) rule for the second letters. This symmetric behavior is common in exam patterns.

Given Data / Assumptions:

• Pairs: AZ, GT, MN, ?, YB
• Use A=1, B=2, ..., Z=26 indexing.

Concept / Approach:
Track first letters and second letters separately to reveal constant steps.

Step-by-Step Solution:
First letters: A(1) → G(7) → M(13) → ? → Y(25). Step size: +6 repeatedly → next first letter = 13 + 6 = 19 → S.Second letters: Z(26) → T(20) → N(14) → ? → B(2). Step size: −6 repeatedly → next second letter = 14 − 6 = 8 → H.Thus the missing pair is SH.

Verification / Alternative check:
Continuing +6 for the first letters and −6 for the second letters neatly produces the final given pair YB, confirming consistency.

Why Other Options Are Wrong:

• JH, SK, TS: These break either the +6 first-letter or −6 second-letter rule.

Common Pitfalls:
Mixing up the order or applying the step to both letters in the same direction. Many puzzles intentionally mirror the steps to opposite directions for symmetry.

Final Answer:
SH