Let 3 geometric means G1, G2, G3 are ins...

Let `3` geometric means `G_1, G_2, G_3` are inserted between two positive number `a` and `b` such that `(G_3-G_2)/(G_2-G_1)=2` then `b/a` equal to (i) `2` (ii)`4` (iii)`8` (iv)`16`

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