एक गुणोत्तर श्रेणी के पहले – McqOptions

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1.	एक गुणोत्तर श्रेणी के पहले 8 पदों का योगफल 6560 है तथा उभयनिष्ठ अनुपात 3 हैं \| प्रथम पद बराबर होगा-
A.	2
B.	7
C.	8
D.	9
Answer» B. 7

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