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If A :B=2 : 3 and B : C=3 :7, then A+B :...

If `A :B=2 : 3` and `B : C=3 :7`, then `A+B : B+C : C+A` is.

A

`4 : 8 : 9`

B

`5 : 8 : 9`

C

`5 : 10 : 9`

D

`4 : 10 : 9`

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The correct Answer is:
C
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KIRAN PUBLICATION-RATIO AND PROPORTION -TYPE-III
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