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Sum to infinity of the GP 1 + 1/2 + 1/4 + 1/8 + ... =

A∞
B2 (= 1/(1 - 1/2))
C1
D3/2
Answer & Solution
Correct answer: B. 2 (= 1/(1 - 1/2))
For infinite GP with |r| < 1: S = a/(1-r) = 1/(1 - 0.5) = 2. Converges since |r| = 0.5 < 1.
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