P is a point on the line y+2x=1, and Qa ...

`P` is a point on the line `y+2x=1,` and `Qa n dR` two points on the line `3y+6x=6` such that triangle `P Q R` is an equilateral triangle. The length of the side of the triangle is

A

1) `(1)/(sqrt15)`

B

2) `(2)/(sqrt15)`

C

3) `(2)/(sqrt5)`

D

4) `(4)/(sqrt5)`

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The correct Answer is:

B

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