The feasible region for an LPP is given by the following graph
The maximum value of the objective function $Z=4x+10y$ is :
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 30
The objective function, $Z=4x+10y$
The equation of both the lines is,
$y=mx+c$
$y=\frac{-6}{4}x+c_1$
$2y=-3x+2c_1$
$2y+3x-2c_1=0$
satisfies at (4, 0)
$0+12-2c_1=0$
$c_1=6$
$≡2y+3x-12=0$ ...(1)
$y=-\frac{3}{6}x+c_2$
$2y=-x+2c_2$
$2y+x-2c_2=0$
satisfies at $(6,0)$
$0+6-2c_2=0$
$c_2=3$
$≡2y+x-6=0$ ...(2)
$⇒2x-6=0$
$x=3,y=\frac{3}{2}$
$Z(3,\frac{3}{2})=4×3+10×\frac{3}{2}$
$=12+15=27$
$Z_{max}(0,3)=4×0+10×3=30$