Use Duality to Solve the Problem $\mathrm{w}=4 \mathrm{y} 1+2 \mathrm{y} 2$

Multiple Choice

Use duality to solve the problem.
-Minimize $\mathrm{w}=4 \mathrm{y} 1+2 \mathrm{y} 2$
Subject to: $3 \mathrm{y}_{1}+2 \mathrm{y}_{2} \geq 60$
$4 \mathrm{y}_{1}+\mathrm{y}_{2} \geq 40$
$\mathrm{y}_{1} \geq 0, \mathrm{y}_{2} \geq 0$

A) 48
B) 64
C) 66
D) 80