 # C program to calculate simple interest using function

## Let’s understand the steps:

### Simple Interest = (p * n * r) / 100

where,

p = Principal Amount,

n = Number of Years / Period

r = Rate of Interest

###### example:-

Principal Amount = ₹ 5000

Period = 2 years

Rate of Interest = 10%

Simple Interest = ₹ 1000

## Logic to calculate simple interest

Step

Input

1. principle amount in variable P.
2. time in variable t.
3. rate in variable r.
4. Find simple interest using formula.
5. `SI = (p*t*r) / 100`
6. print output.

## C program to calculate simple interest

```#include <stdio.h>
int main()
{
float p, t, r, SI;

//Input principle, rate and time
printf("Enter principle:- ");
scanf("%f", &p);

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

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

// Calculate simple interest
SI = (p * t * r) / 100;

// Print the resultant value of SI
printf("Simple Interest = %f", SI);
}

Output:

``` C-program-to-calculate-simple-interest-2

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