Simple Interest

In this program, # is a preprocessor directive ,  whereas #include<filename.h> is used

to extract the functions already created in file . float si,tim,amount,rot creates float type

variables which stores simple interest ,time,amount & rate of interest given by user .

simple interest =  (amount*rot*time) which is stored in si .  

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Program for Simple Interest.

#include<stdio.h>

#include<conio.h>

void main()

{ float si,tim,amount,rot;

clrscr();

printf("\n program to calculate simple interest");

printf("\n\n enter principal amount : ");

scanf("%f",&amount);

printf("enter rate of interest : ");

scanf("%f",&rot);

printf("enter time period : ");

scanf("%f",&tim);

si = (amount*tim*rot)/100;

printf("\n simple interest = %f",si);

getch();

}