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For 2 le r le n,(n/r) + 2(n/(r-1)) + (n/...

For `2 le r le n,(n/r) + 2(n/(r-1)) + (n/(r - 2))` is equal to

A

`((n+1)/(r-1))`

B

`2((n+1)/(r-1))`

C

`2((n+1)/r)`

D

`((n+2)/r)`

Text Solution

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The correct Answer is:
D
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