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Halving repeatedly gives 1/2, 1/4, 1/8, 1/16, 1/32, 1/64. What do they add to?
A127/128
B31/32
C1
D63/64
Answer & Solution
Correct answer: D. 63/64
The sum of n such terms is 1 - 1/2^n, so six terms give 1 - 1/64 = 63/64.
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