Description

The formula to calculate simple interest is:
simple interest = (principle x rate x time) / 100

C/C++

/* C Program to find simple interest */
//Save it as SimpleInterest.c

#include<stdio.h>
int main(){

    float amount, rate, time, result;

    printf("Enter the amount : ");
    scanf("%f",&amount);

    printf("Enter the rate : ");
    scanf("%f",&rate);

    printf("Enter the time : ");
    scanf("%f",&time);

    result = (amount*rate*time)/100;

    printf("The simple interest is %.3f", result);

    return 0;
}

Input:
Enter the amount : 1200
Enter the rate : 5
Enter the time : 7

Output:
The simple interest is 420.000

Java

/* Java Program to find simple interest */
//Save it as SimpleInterest.java

import java.io.*;
import java.util.Scanner;

public class SimpleInterest {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        
        float amount, rate, time, result;

        System.out.println("Enter the amount : ");
        amount = scanner.nextFloat();

        System.out.println("Enter the rate : ");
        rate = scanner.nextFloat();

        System.out.println("Enter the time : ");
        time = scanner.nextFloat();

        result = (amount*rate*time)/100;

        System.out.println("The simple interest is "+result);
    }
}

Input:
Enter the amount : 
1200
Enter the rate : 
5
Enter the time : 
7

Output:
The simple interest is 420.0

Related Programs