Question

If the and terms of an A.P. are in G.P., then common ratio of the G.P. is

A

B

C

D

Medium
Solution
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Correct option is D)

terms of A.P. are 

             (1)

        (2)

     (3)

Where r is common ratio of G.P. 

Subtracting (2) from (3) and (1) from (2) and then dividing the former by the later, we have

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