Assume That Equilibrium GDP (Y) Is 5,000

Multiple Choice

Assume that equilibrium GDP (Y) is 5,000. Consumption is given by the equation C = 500 + 0.6 (Y - T) . Taxes (T) are equal to 600. Government spending is equal to 1,000. Investment is given by the equation I = 2,160 - 100r, where r is the real interest rate in percent. In this case, the equilibrium
Real interest rate is:

A) 5 percent.
B) 8 percent.
C) 10 percent.
D) 13 percent.