Write a program that calculates the Simple Interest and Compound Interest. The Principal Amount, Rate of Interest, and Time are entered through the keyboard.

Dr. A.P.J. Abdul Kalam Technical University, Lucknow

KCS101 / KCS201 Programming for Problem Solving - Using C Language

Lab Exercises

2. Write a program that calculates the Simple Interest and Compound Interest. The Principal Amount, Rate of Interest, and Time are entered through the Keyboard.

/*

 File: Prgrm02.c

 Author: Aditya Saini

 Date: Sept 06, 2019

 Description: Program to find Simple Interest and Compound Interest.

*/

#include <stdio.h>
#include <math.h>

int main (void)

{

               float principal_amount;
               float rate_of_interest;
               float time_in_years;
               float simple_interest;
               float compound_interest;

               //Input Principal Amount, Rate of Interest and Time (in years).
               printf ("Input Principal Amount: ");
               scanf ("%f", &principal_amount);

               printf ("Input Rate of Interest: ");
               scanf ("%f", &rate_of_interest);

               printf ("Input Time (Years): ");
               scanf ("%f", &time_in_years);

               //Calculate Simple Interest and Compound Interest.

               simple_interest = principal_amount * rate_of_interest * time_in_years / 100;
               compound_interest = principal_amount * (pow ((1 + rate_of_interest / 100), time_in_years))
                              - principal_amount;

               //Output the result
               printf ("Simple Interest: %.2f\n", simple_interest);
               printf ("Compound Interest: %.2f ", compound_interest);

               return 0;

};

Output

Input Principal Amount: 15000
Input Rate of Interest: 13.50
Input Time (Years): 5
Simple Interest: 10125.00
Compound Interest: 13253.39