If the sum of \[n\] terms of a G.P. is 255 and \[{{n}^{th}}\]terms is 128 and common ratio is 2, then first term will be [RPET 1990]

If the sum of \[n\] terms of a G.P. is 255 and \[{{n}^{th}}\]terms is

1.	If the sum of \[n\] terms of a G.P. is 255 and \[{{n}^{th}}\]terms is 128 and common ratio is 2, then first term will be [RPET 1990]
A.	1
B.	3
C.	7
D.	None of these
Answer» B. 3

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If the sum of \[n\] terms of a G.P. is 255 and \[{{n}^{th}}\]terms is 128 and common ratio is 2, then first term will be [RPET 1990]

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