Digit permutation analogy Using 123 → 132 as the model, find the analogous result for 235 → ?

Difficulty: Easy

Correct Answer: 253

Explanation:


Introduction / Context:
This number analogy examines recognition of a simple digit-swap pattern. You must determine how the digits of the first number are rearranged to form the second and then apply the same rearrangement to the new number.



Given Data / Assumptions:

  • Training pair: 123 becomes 132.
  • The digits involved are distinct and retain their identity after rearrangement.



Concept / Approach:
From 123 to 132, the first digit (1) remains in place, while the last two digits (2 and 3) swap their positions. This is a consistent, easy-to-apply transformation: keep the hundreds digit fixed, interchange the tens and ones digits.



Step-by-Step Solution:
Identify the pattern: 123 → 132 (swap the last two digits).Apply to 235: keep 2 fixed, swap 3 and 5 → 253.



Verification / Alternative check:
Confirm that no arithmetic is performed; it is purely a permutation of digit positions.



Why Other Options Are Wrong:
352: Moves the 2, violating the “keep first digit fixed” rule.232 and 252: Introduce repeated digits or alter identity improperly; not a simple swap.



Common Pitfalls:
Overcomplicating the pattern with addition/multiplication or moving the first digit inadvertently.



Final Answer:
253

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