A series, whose nth term is (n/x)+y, the...

A series, whose nth term is (n/x)+y, then sum of r terms will be

A

`{(r(r+1))/(2x)}+ry`

B

`{(r(r-1))/(2x)}`

C

`{(r(r-1))/(2x)}^2-xy`

D

`{(r(r+1))/(2x)}-rn`

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The correct Answer is:

A

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