Analogy (digit pattern): 20 : 30 :: 110 : ____. Infer a consistent transformation and apply it.
Verbal Reasoning
Analogy
Difficulty: Medium
Choose an option
Answer
Correct Answer: 120
Explanation
Introduction / Context:The legacy options were misaligned with a simple, teachable rule. Applying Recovery-First, we minimally correct options so a consistent transformation works on both pairs.
Given Data / Assumptions:
- Map f(n) = n + 10.
- 20 → 30 satisfies f.
- Apply f to 110.
Concept / Approach:Use the simple arithmetic shift seen in the exemplar.
Step-by-Step Solution:Compute: 110 + 10 = 120.
Verification / Alternative check:Alternate digit reorders (e.g., 132, 312) are not implied by the exemplar mapping.
Why Other Options Are Wrong:They do not represent the same +10 transformation.
Common Pitfalls:Inventing overly complex digit shuffles when a linear rule fits.
Final Answer:120.