Difficulty: Easy
Correct Answer: 72
Explanation:
Introduction / Context:
This additive series increases by consecutive even numbers. Recognizing the difference pattern is key to projecting the next term correctly.
Given Data / Assumptions:
Concept / Approach:
List successive differences. If they are consecutive even numbers starting from 4, extend with the next even number to get the missing term.
Step-by-Step Solution:
6 − 2 = 412 − 6 = 620 − 12 = 830 − 20 = 1042 − 30 = 1256 − 42 = 14Next difference = 16 ⇒ Next term = 56 + 16 = 72
Verification / Alternative check:
Even-difference ladders are common: starting at 4 and adding 2 each step reproduces every jump perfectly, confirming 72.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
72
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