1.

in an economy investment is increased by Rs. 300 crore .If MPC is 2/3 , calculate increase in national income .

Answer» `K=(DeltaY)/(DeltaI) or DeltaY=KxxDeltaI`
`=(1)/(1-MPC)xxDeltaI`
`=(1)/(1(-2)/(3))xx300`
`=(1)/((1)/(3))xx300`
`=3xx300=900 `crore


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