In this tutorial, we will create a C program to calculate simple interest. We are solving this program without using any function.

Formula to find simple interest:

si = (pamt* r * t) /100

Where,

pamt is -principle amount

r- Rate is

t - Time is

#### Program

#include<stdio.h> int main() { int amt, r, t, si; printf("n Enter Principal Amount : "); scanf("%d", &amt); printf("n Enter Rate of Interest : "); scanf("%d", &r); printf("n Enter Period of Time : "); scanf("%d", &t); si = (amt * r * t) / 100; printf("n Simple Interest : %d", si); return 0; }

Output:-Enter Principal Amount : **100**

Enter Rate of Interest : **2**

Enter Period of Time : **3**

Simple Interest : **60**

## Explanation of Program :

In this program, We are finding the simple interest by using the formula of simple interest. You can understand it by given below statements.

amt = 100 for principle amount**r=3** for Interest**t=3** for Time**si=amt*r*t/100;**

Now si will provide the result of simple interest.

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