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+//Example 6_30 page no:364
+clc;
+//given
+power = 37;//in kW
+motor_cost_a = 1440;//in rupees
+eff_a = 88;//in percentage
+motor_cost_b = 1920;//in rupees
+eff_b = 89;//in percentage
+opp = 3000;//in hours
+tariff = 6;//in paise per kWH
+dep = 10;//in percentage in per year
+output = 37;//in kW
+//motor A
+cap_charge = motor_cost_a * dep / 100;
+loss = ((1/0.88)-1) * output;
+yr_cost_loss_a = loss * opp * tariff / 100;
+disp(yr_cost_loss_a,"the yearly cost of motor A is (in rupees)");
+//motor B
+cap_charge = motor_cost_b * dep / 100;
+loss = ((1/0.89)-1) * output;
+yr_cost_loss_b = loss * opp * tariff / 100;
+disp(yr_cost_loss_b,"the yearly cost of motor B is (in rupees)");
+disp("the motor B gives the lower yearly cost");
+//the value of cost vary with textbook hence values are rounded off in textbook but the result is same 
+