Program to Find the simple interest in C++

Here we will write a program to calculate Simple Interest in C++, everyone is familiar what simple interest is.

Simply,     Simple Interest = Principle x Time x Rate divided by 100  or

S. I. = PxTxR/100

How program works:

  • This program takes in the prinicipal, rate and time as a screen input from the user.
  • The program is executed (run) 5 times using the ‘FOR’ loop.
  • It calculates the simple interest using the formula I = PTR/100.
  • The principal, rate, time and the simple interest are then outputted using the ‘cout’ command.

Program to calculate Simple Interest in C++:

#include <iostream>
using namespace std;

int main()
{
int x;
float sinterest,principal,rate,time;
for(x=4;x>=0;x--)
{
cout << "Enter the principal, rate & time : " << endl;
cin>>principal>>rate>>time;
sinterest=(principal*rate*time)/100;
cout << "Principal = $" << principal << endl;
cout << "Rate = " << rate << "%" << endl;
cout << "Time = " << time << " years" << endl;
cout << "Simple Interest = $" << sinterest << endl;
}
return 0;
}

OUTPUT:

Principal = $1000
Rate = 5%
Time = 3 years
Simple Interest = $150

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