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+//Exa 9
+clc;
+clear;
+close;
+//given data :
+//initial cash outflows
+ICO=50000;//in Rs.
+//cash in flows of 1st,2nd,3rd and 4th years
+CIF1=20000;//in Rs.
+CIF2=15000;//in Rs.
+CIF3=25000;//in Rs.
+CIF4=10000;//in Rs.
+//P.V factor at 10% rate of discount
+PV1=0.909;
+PV2=0.826;
+PV3=0.751;
+PV4=0.683;
+//Present value for all cash in flows
+P1=CIF1*PV1;// in Rs
+P2=CIF2*PV2;// in Rs
+P3=CIF3*PV3;// in Rs
+P4=CIF4*PV4;// in Rs
+//Total Present Value
+P=P1+P2+P3+P4;// in Rs
+//Net Present Value
+NPV=P-ICO;// in Rs
+disp(NPV,"Net Present Value is : ")
+//profitabolity index
+PVI=P/ICO;// unitless
+disp(PVI,"Profitability Index of the project as calculated is : ")
+disp("As Profitability Index of the project is greater than 1, the proposal can be accepted.")
+//Net profitability
+NPVI=NPV/ICO;
+disp(NPVI,"Net profitability of the project is : ")
+disp("As Net Profitability Index of the project is +ve, the proposal may be accepted.")
+