If `P(3,2,-4), Q(5,4,-6)` and `R(9,8,-10)` are collinear,then `R` divides `PQ` in ratio?

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Q 1367323285.     If `P(3,2,-4), Q(5,4,-6)` and `R(9,8,-10)` are collinear,then `R` divides `PQ` in ratio?
A

`3:2` internally

B

`3:2` externally

C

`2:1` internally

D

`2:1` externally

HINT

According to section formula, the coordinates of `R` is given by `(frac{5 lambda+3}{lambda+1},frac{4 lambda+2}{ lambda+1}, frac{-6 lambda-4}{lambda+1})`

Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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