Difficulty: Easy
Correct Answer: 3508
Explanation:
Introduction / Context:
This series is built by multiplying by an increasing integer and then adding a fixed constant. Recognizing that two-step pattern (multiply, then add) provides a direct path to the next term.
Given Data / Assumptions:
Concept / Approach:
Check consecutive ratios to see the approximate multiplier, then verify whether a small constant (e.g., +4) is added. Confirm across steps; if consistent, apply the next multiplier and the same addend.
Step-by-Step Solution:
Verification / Alternative check:
No other simple constant addend fits all prior links. The increasing multipliers (3, 4, 5, 6) plus a constant +4 produce exact matches every time.
Why Other Options Are Wrong:
Common Pitfalls:
Attempting to use only multiplication without checking for a small additive constant, which is a frequent twist in series puzzles.
Final Answer:
3508
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