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If the sums of n terms of two arit...

If the sums of `n` terms of two arithmetic progressions are in the ratio `(3n+5)/(5n+7)` , then their `n t h` terms are in the ratio `(3n-1)/(5n-1)` (b) `(3n+1)/(5n+1)` (c) `(5n+1)/(3n+1)` (d) `(5n-1)/(3n-1)`

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