A 33/31
B 63/32
C 63/64
D 127/64
Correct Answer: Option D
প্রথম সাতটি পদ হবেঃ 1+1/2+1/4+1/8+1/16+1/32+1/64
ধারাটির যোগফলঃ
=(64+32+16+8+4+2+1)/64
=127/64 (ans.)
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