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If a ,b ,a n dc be in G.P. and a+x ,b+x...

If `a ,b ,a n dc` be in G.P. and `a+x ,b+x ,and c+x` in H.P. then find the value of x(a ,b and c are distinct numbers)
(a) c
(b) b
(c) a
(d) None of these

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