If the discretionary income in a nation rises from $13 trillion to $15 trillion and consumption spending increases from $12 trillion to 13.5 trillion what is the marginal propensity to consume?

induced consumption expenditure = 0.9*Income

MPC or Marginal propensity to consume is also given as, (1-MPS).  Where, MPS is marginal propensity to save.So, if MPS =3/4Then MPC = (1-3/4)                 = 1/4 or 0.25

Y=C+IC=a+cYY=200+0.75Y+6000.25Y=800Y=3200Since this answer doesn't exist, I've decided that it is 8000

(4) 4If MPC = 3/4 or 0.75, multiplier is=1/(1-0.75) = 1/0.25 = 100/25 = 4

A change in government spending that can eliminate the gap identified should be equal to the taxation offered to private sector

The other factor is that influences a households induced consumption is its disposable income, or the greater the level of income. A community's ability yo consume increases with the increase...

At Equillibrium, AD=ASY=C+IC=a+bYC=R105+0.9YY=R105+0.9Y+R108Y-0.9Y=R2130.1Y=R213Y=R213/0.1=R2130

(4) 1/4

\d. Spending on final consumer goods

The answer is A.