Difficulty: Easy
Correct Answer: 35 10
Explanation:
Introduction / Context:
Interleaved sequences split into two simpler progressions: one operating on odd positions and the other on even positions. Recognizing and continuing both threads yields the answer.
Given Data / Assumptions:
Concept / Approach:
Continue the even-position subsequence first (since the next term is position 8), then continue the odd-position subsequence (position 9).
Step-by-Step Solution:
Verification / Alternative check:
Interleaving after extension gives: … 6, 38, 8, 35, 10 — consistent with the +2 and −3 rules.
Why Other Options Are Wrong:
Common Pitfalls:
Adding +3 to the even thread or forgetting which position comes next.
Final Answer:
35 10
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