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If a,b,c are in G.P. and x,y be the AM\'...

If `a,b,c are in G.P. and x,y be the AM\'s between a,b and b,c respectively then (A) `1/a+1/b=(x+y)/6` (B) `ax+cy=b` (C) `a/x+c/y=2` (D) `1/x+1/y=2/b`

A

`(a)/(x) + (c)/(y) = 2`

B

`(a)/(x) + (2c)/(y) = (c)/(2a)`

C

`(1)/(x) + (1)/(y) = (3)/(b)`

D

`(2)/(x) + (1)/(2y) = (3)/(a c)`

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