Find amount of unit consumed in Electricity in 'C'

Example



#include<stdio.h>
#include<conio.h>
void main()
{
int unit;
float amt;
clrscr();
printf("Enter the unit consumed:");
scanf("%d",&unit);
if(unit>0 && unit<=200)
{
amt=unit*0.50;
}
else if(unit>=201 && unit<=400)
{
amt=(unit*0.35)+100;
}
else if(unit>=401 && unit<=600)
{
amt=(unit*0.80)+230;
}
else if(unit>=601)
{
amt=(unit*1)+390;
}
else
printf("Enter proper unit:");
printf("\nAmount of unit consumed=%.3f",amt);
getch();
}
/*========================================================================
OUTPUT
Enter the unit consumed:500
Amount of unit consumed:630.000
=========================================================================*/