Q1. 11/11/2016

#include<conio.h>
#include<iostream.h>

float sum_of_series(float x);
void main()

{ clrscr();
  float x,y;
  cout<<"Enter no. of terms ";
  cin>>x;
  y=sum_of_series(x);
  cout<<"Sum of "<<x<<" terms of Series = "<<y;
  getch();
}

float sum_of_series(float x)

{ float sum=0;
  for (int i=1;i<=x;i++)
      { sum=sum+i;
      }

  return(sum);
}