KEAM 2023 Math Solved Paper

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Question : 103 of 120
 
Marks: +1, -0
Suppose the line mx−y+5m−4=0 meets the lines x+3y=2=0,2x+3y+4=0 and x−y−5=0 at the points R, S and T, respectively. If R,S and T at distances r1,r2 and r3 respectively, from (−5,−4) and (‌
15
r1
)
+(‌
10
r2
)
2
=(‌
6
r3
)
2
then the value of m is
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