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The nth term of the series 2 1/2+1 7/3+1...

The nth term of the series `2 1/2+1 7/3+1 1/9+20/23+………. Is (A) `20/(5n+3)` (B) `20/(5n-3)` (C) `20(5n+3)` (D) `20/(5n^2+3)`

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