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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