The Position vectors of A,B,C are 3veci+...

The Position vectors of A,B,C are `3veci+2vecj-veck, 2veci+4vecj+5veck and `veci+0vecj+5veck` then the position vector of centroid is :

A

`3veci+2vecj-4veck`

B

`2veci-2vecj-3veck`

C

`2veci+2vecj+3veck`

D

none of these

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The correct Answer is:

C

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