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A and B are two points. The position vec...

A and B are two points. The position vector of A is 6b-2a. A point P divides the line AB in the ratio 1:2. if a-b is the position vector of P, then the position vector of B is given by

A

`7bara-15barb`

B

`7bara+15barb`

C

`15bara-7barb`

D

`15bara+7barb`

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The correct Answer is:
A
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