Difficulty: Easy
Correct Answer: 29 31
Explanation:
Introduction / Context:Alternating-step progressions require attention to the operation order. Here, two small additions repeat in a cycle.
Given Data / Assumptions:
Concept / Approach:Confirm the alternating pattern and apply the next two operations in order.
Step-by-Step Solution:
3 + 5 = 8; 8 + 2 = 10.10 + 5 = 15; 15 + 2 = 17.17 + 5 = 22; 22 + 2 = 24.Next: 24 + 5 = 29; then 29 + 2 = 31.Verification / Alternative check:Continue mentally: after 29,31 the series would again add +5 then +2, preserving the rhythm.
Why Other Options Are Wrong:
Common Pitfalls:Applying +5 twice in a row or swapping the order of +5 and +2.
Final Answer:29 31
Discussion & Comments