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a, b, c are the first three terms of geo...

a, b, c are the first three terms of geometric series. If the H.M. of a and b is 12 and that of b and c is 36 then which of the following hold(s) good?

A

Sum of the first term and common ratio of the G.P. Is 11.

B

Sum of the first five terms of the G.P. is 948.

C

If the value of the first term and common ratio of the given G.P. is taken as the first term and common difference of an A.P. then its `8^(th)` term is 29`.

D

The number `648` is one of the term of the G.P.

Text Solution

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The correct Answer is:
A
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