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A straight line L through the origin mee...

A straight line L through the origin meet the lines x+y=1 and x+y=3 at P and Q, respectively. Lines `L_1 and L_2 " are drawn , parallel to 2x-y=5 and 3x=y=5 respectively lines " L_1 and L_2` intersect at R.Then that the locus of R, as L varies, is a staright line.

A

x-3y+5=0

B

x+3y+5=0

C

x+3y-5=0

D

x-3y+-5=0

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A
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