in the series? 131, 118, 105, 92, 79, __?

69
66
72
75

Question

in the series? 131, 118, 105, 92, 79, __?

69
66
72
75

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Number Series" ], "new_concepts": [], "current_concepts": [ "Number Series", "Arithmetic Progressions" ] } ## Identify the pattern in the sequence $$ \begin{aligned} 118 - 131 &= -13 \ 105 - 118 &= -13 \ 92 - 105 &= -13 \ 79 - 92 &= -13 \end{aligned} $$ ## Calculate the next term $$ 79 - 13 = 66 $$

69

66

72

75

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Arithmetic Progressions" ] }

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Question

Explanation:

Identify the pattern in the sequence

Calculate the next term

Answer: