Find the odd number group from the alternatives given below. Treat each option as two two-digit numbers and check the relationship between the first pair and the second pair. Choose the option that does NOT follow the same relationship as the others. (A) 5261 (B) 4354 (C) 7283 (D) 1829 (E) 3041

Introduction / Context:
This odd-one-out question tests pattern recognition in 4-digit numbers by splitting them into two 2-digit blocks. Many aptitude questions use consistent differences or ratios between these blocks. The odd choice is the one that breaks the shared rule.

Given Data / Assumptions:

• Split each 4-digit number into two 2-digit numbers: first two digits and last two digits.
• Compute the difference: (last two digits) - (first two digits).
• Compare this difference across options.

Concept / Approach:
If three or more options share the same difference between the two 2-digit parts, that becomes the dominant rule. Any option with a different difference is the odd one out.

Step-by-Step Solution:

Verification / Alternative check:
A fast verification is to notice that most options increase by +11 from the first two digits to the last two digits. 43->54, 72->83, 18->29, and 30->41 all show +11. Only 52->61 shows +9, confirming it is the odd one out.

Why Other Options Are Wrong:

Common Pitfalls:
Common mistakes include working digit-by-digit instead of treating them as two-digit numbers, or checking sums/products which are not needed here. Always try a simple split (2+2) first in such questions because it frequently reveals the intended pattern quickly.

Final Answer:
5261