# Calculate simple interest in C++

###### cin - Question 14

In this question, we will see how to input principal, rate, time in C++ programming using the cin statement and find the simple interest. To know more about cin statement click on the cin statement lesson.

**Q14)** Write a program in C++ to input principal, rate, time and find the simple interest.

Formula: Simple Interest = (Principal * Rate * Time) / 100

#### Program

```
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int p,r,t,si;
cout<<"Enter principal ";
cin>>p;
cout<<"Enter rate ";
cin>>r;
cout<<"Enter time ";
cin>>t;
si=(p*r*t)/100;
cout<<"Simple Interest="<<si;
return 0;
}
```

#### Output

Enter principal 5000 Enter rate 10 Enter time 1 Simple Interest=500