Budget line is a locus of all those combinations of two goods which a consumer can afford.
p1×q1+p2×q2=m
This is the equation of budget line.
Law of equi marginal utility states that a consumer will continue to consume two good till he get the equal marginal utility in terms of money so
pxMUx=pyMUy
Here marginal utilities of good x and good y in terms of money and to calculate MU in terms of money, we'll divide the MU of gooda by their price level.
a)According to equilibrium marginal law
pxMUx=pyMUy⇒p1MU1=p1MU1
so
q1=5 units
q2=1 unit
b)TU=10+5+4+2.5+2+2=25.5 units
c) Budget line p1×q1+p2×q2=m
m=income
4q1+10q2=m
at equilibrium level 4×5+10×1=30 naira
if consumer income is 30 naira then he can afford
q1=430=7.5 unitsq2=1030=3 units
d)
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