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//Chapter 2, Problem 16
clc;
V=240; //supply voltage
I=13; //current
t=30; //time in hours
P=V*I; //power
E=P*t; //energy
printf("Energy used per week = %.1f kWh\n\n",E/1000);
printf("hence weekly cost of electricity = %.2f £ euro",(E*12.5/1000)/100);
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