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If the first and (2n + 1)th terms of an ...

If the first and (2n + 1)th terms of an A.P. , G.P. and H.P. are equal and their (n + 1)th terms are a, b and c respectively, then

A

`a gt b gt c`

B

`ac =b^(2)`

C

`a+b=c`

D

none of these

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The correct Answer is:
B
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