Straight Line Question 50
Question: If lines $ 4x+3y=1,y=x+5 $ and $ 5y+bx=3 $ are concurrent, then b equals [RPET 1996; MP PET 1997; EAMCET 2003; Pb. CET 2002]
Options:
A)1
B)3
C)6
D)0
Correct Answer: C
Show Answer
Answer:
Solution:
Þ $ 4(3-25)-3(-3-5b)-1(5+b)=0 $
Þ $ -88+9+15b-5-b=0\Rightarrow -84+14b=0 $ \ $ b=6 $ .
BETA
