//Exa 2 clc; clear; close; //given data : //cash in flows of 1st,2nd,3rd and 4th years CIF1=20000;//in Rs. CIF2=30000;//in Rs. CIF3=40000;//in Rs. CIF4=50000;//in Rs. //Cummulative cash in flows of 1st,2nd,3rd and 4th years CumCIF1=20000;//in Rs. CumCIF2=50000;//in Rs. CumCIF3=90000;//in Rs. CumCIF4=140000;//in Rs. disp("In the table it can be seen that in 3 years 90000 Rs has been recovered, Rs. 10000 is left out of initial investment.") disp("Payback period is between 3 and 4 years.") E=3; B=100000-90000;//remaining balance to be recovered C=50000;//cash flow of last year PaybackPeriod=E+B/C; disp(PaybackPeriod,"Payback period of the project(in years) is : "); //Note : ans in the book is not accurate, given 3 years and two month. but it is 3.2 years and can say 3 years 2 month plus 12 days.