calculate mps and mpc from the following national income=100 autonomous consumption=100 investment expenditure=120

Question

​ calculate mps and mpc from the following national
income=100 autonomous consumption=100 investment expenditure=120

Shaikh Amaan · Accepted Answer

Y=C+I
Y=c(bar)+b(y)+I
100=100+b(100)+120
b(100)=100+220
b=300÷100
b=3
mpc=b
so,mpc=3

1-mpc=mps
1-3=mps
-2=mps
mps=2

​ calculate mps and mpc from the following national income=100 autonomous consumption=100 investment expenditure=120