At the utility maximizing level of X1 & X2:
MU1/P1=MU2/P2 or MU1/MU2 = P1/P2,
MU1=U′(X1)=0.4(X2/X1)0.6,
MU1=U′(X1)=0.6(X1/X2)0.4,
So, we get:
3X12X2=43,
X1 = 8/9 X2,
According to the budget equation:
3X1 + 4X2 = 108, we get:
3×8/9×X2+4X2=108,
20/3×X2=108,
X2 = 16.2 units,
X1=8/9×16.2=14.4 units.
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