MathematicsProgressionsWAEC
Find the sum of the first 8 terms of the A.P. 2, 5, 8, …
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Answer: C. 100
S₈ = 8/2 × (2 × 2 + 7 × 3) = 4 × 25 = 100.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
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