MathematicsProgressionsJAMB
Find the sum 1 + 2 + 4 + 8 + … + 128.
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Answer: D. 255
This is a GP with 8 terms: S = 2⁸ − 1 = 255.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.
Mathematics · Progressions
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