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+//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_5.sce
+
+clc;
+clear;
+tariff1=3.50;             //tariff in rupees per kilowatthour for first 500kilowatthour
+tariff2=3.00;              //tariff in rupees per kilowatthour for next 500kilowatthour
+tariff3=2.50;              //tariff in rupees per kilowatthour for usage exceeding 1000kilowatthour
+days_in_a_month=31;
+time_duration=24*days_in_a_month;
+average_demand=2.5;                              //in kilowatt
+monthly_consumption=time_duration*average_demand;
+a1=500;               //kWh for tariff1
+a2=500;                //kWh for tariff2
+a3=monthly_consumption-a1-a2;          //kWh for tariff3
+monthly_charge=(a1*tariff1)+(a2*tariff2)+(a3*tariff3);
+printf("\n Monthly Charge=%d rupees.",monthly_charge)