In the following question, select the odd letter pair from the alternatives given below. Focus on the alphabetical distance between the first and second letter in each pair and find the pair that does NOT follow the same gap as the others. (A) KQ (B) DJ (C) SZ (D) RX (E) FM

Introduction / Context:
This question is about letter-pair patterns using alphabetical positions. The standard technique is to assign A=1 through Z=26, then compute the difference between the two letters in each pair. The odd pair is the one whose difference does not match the common difference seen in the other pairs.

Given Data / Assumptions:

• Alphabet positions: A=1, B=2, ..., Z=26.
• Compute gap = position(second letter) - position(first letter).
• Look for a repeated gap across most options.

Concept / Approach:
If multiple pairs share the same alphabet gap (for example +6), then that is the intended rule. Any pair with a different gap is the odd one out.

Step-by-Step Solution:

Verification / Alternative check:
A quick verification is to check which gap is dominant among the original alternatives: KQ, DJ, and RX all have a gap of 6. SZ has a gap of 7, so it breaks the shared +6 rule and becomes the odd pair among the core set.

Why Other Options Are Wrong:

Common Pitfalls:
Students sometimes count letters incorrectly (forgetting A=1), or they count the number of letters in between instead of the position difference. Another pitfall is ignoring that the pattern may be built from the majority of options (3 out of 4). Always identify the dominant repeated rule first.

Final Answer:
SZ