Write a program to find the sum of the following series:

Source Code

 #include<stdio.h>

 #include<conio.h>

 int main (int argc, char *argv[])

 {

   clrscr();

   int i=0,r=0,s=0,c=1;

   printf("\n Enter the range:");

   scanf("%d",&r);

   for(i=1;i<=r;i++)

   {

         s+=c;

         c+=5;

   }

   printf("\n The sum of %d numbers of the series is %d",r,s);

   getch();

 }

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