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What is the sum of 1 1/2+4 1/6+7 1/12+10...

What is the sum of `1 1/2+4 1/6+7 1/12+10 1/20`.....up to 20 terms?
`1 1/2+4 1/6+7 1/12+10 1/2`.....के 20 पदों तक का योग क्या है?

A

`(12410)/(21)`

B

`(12412)/(21)`

C

`(12433)/(21)`

D

`(11794)/(21)`

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