Question : In an economy, the investment expenditure is Rs. 80 crore and consumption function is C= 80+0.75Y. Calculate equilibrium level when planned investment expenditure is increased by Rs. 10 crore.
Option 1: 680
Option 2: 780
Option 3: 620
Option 4: 720
Correct Answer: 680
Solution : I= 80+10= 90
Y= 80+0.75Y+90
0.25Y= 170
Y= Rs. 680 crore