Question

Write a loop that will calculate the sum of all even numbers from 2 to 30 ( including 30) store the result in the variable called thirtySum. Declare and initialize all variables.

Answer using programming in c.

Answer 1

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/**
* C program to print sum of all even numbers between 1 to 30
*/

#include <stdio.h>
int main()
{
   // declare and initialize variables
int i,n,thirtysum;
n=30;
   thirtysum=0;
for(i=2; i<n; i+=2)
{
if(i%2==0){
   /* Add current even number to sum */
   thirtysum += i;
       }
}
printf("The Sum of all even number between 1 to %d = %d", n, thirtysum);
return 0;
}