# C Exercises: Compute the simple interest

## C Basic Declarations and Expressions: Exercise-53 with Solution

Write a C program that accepts the principle, rate of interest, and time and calculates simple interest.

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**Sample Solution:**

**C Code:**

```
#include<stdio.h>
int main() {
int p, r, t, int_amt;
// Prompt user to input principle, rate of interest, and time
printf("Input principle, Rate of interest & time to find simple interest: \n");
scanf("%d%d%d", &p, &r, &t);
// Calculate simple interest
int_amt = (p * r * t) / 100;
// Display the calculated simple interest
printf("Simple interest = %d", int_amt);
return 0;
}
```

Sample Output:

Input Data: p = 10000, r = 10% , t = 12 year Input principle, Rate of interest & time to find simple interest: Simple interest = 12000

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