19 : C Program to Compute Simple Interest (SI)

In order to calculate Simple Interest you need to know Principle Amount, Rate and Duration values. You need to get these values from user using scanf fuction.

Variables :

1. principle : (Datatype int) : to hold principle amount entered by user.

1. rate : (Datatype int) : to hold rate entered by user.

1. duration : (Datatype int) : to hold duration entered by user.

2. simpleInterest : (Datatype fload) : To hold Simple Interest calculated



Formula :

SI = (Principle x Rate x Duration)/100



Functions :

printf() : is used to display something on the console/screen. Format specifier %d in printf function is used to display a int variable on screen. \n is used to add a newline

scanf() : is used to fetch data inputted by the user on the console/screen using keyboard. %d in scanf is indicates that inputted text is of type int.

/*
 * 1000+ C programs + tutorials
 *
 * 
 * 19_compute_simple_interest.c
 *
 *
 *  Created on: Oct 20, 2014
 *  Author: Code2care.org
 */

#include 
//#include 

void main() {

  int principle;
  int rate;
  int duration;
  float simpleInterest;

//	clrscr();

	printf(" Simple Interest Calcuation :  ");

	printf("\n\n Enter Principle Amount : ");
	scanf("%d", &principle);
    
    printf("\n\n Enter Rate of Interest : ");
	scanf("%d", &rate);
    
    printf("\n\n Enter Duration : ");
    scanf("%d", &duration);
    
    simpleInterest = (principle*duration*rate)/100;
    
    printf("\n\nSimple Interest :  %lf  \n",simpleInterest);


  
//	getch();


}

• Output :
  
  
  Simple Interest Calcuation : 10000
  
  Enter Principle Amount : 5
  
  Enter Rate of Interest : 10
  
  Enter Duration :
  
  Simple Interest : 5000.000000
  
  

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