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Let an A.P. a G.P. and a H.P. of positiv...

Let an A.P. a G.P. and a H.P. of positive terms have the same first term a, the same last term b and the same numberof terms `(2n+1). ` Let x,y,z be the `(n+1)th` terms respectively of the A.P., G.P. and H.P. respectively. On the basis of above information anwer the following question: x,y,z are in (A) A.P. (B) G.P. (C) H.P. (D) none of these

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