In a triangle , if r(1) = 2r(2) = 3r(3)...

In a triangle , if `r_(1) = 2r_(2) = 3r_(3)`, then `a/b` + `b/c` +` c/a` is equal to

A

`(75)/(60)`

B

`(155)/(60)`

C

`(176)/(60)`

D

`(191)/(60)`

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The correct Answer is:

D

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