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If bar(p)=hat(i)-2hat(j)+hat(k)andbar(q)...

If `bar(p)=hat(i)-2hat(j)+hat(k)andbar(q)=hat(i)+4hat(j)-2hat(k)` are position vectors points P and Q. find the position vector of the points R which divides segment PQ internally in the ratio 2:1.

A

`(1, 2, 1)`

B

`(1, -2, -1)`

C

`(1, -2, 1)`

D

`(1, 2, -1)`

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The correct Answer is:
B
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