C Program to calculate Simple_interest.

 (a):

#include<stdio.h>

int main()

{

int P=5000;

float T=2.5, R=5.5, interest;

interest=(P*T*R)/100;

printf("The deposited principal is Rs. %d\n",P);

printf("The time period is %.2f\n",T);

printf("The interest rate is %.2f percentage.\n",R);

printf("The intereset amount is Rs. %.2f\n",interest);

printf("The total amount is Rs. %.2f",P+interest);

}

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(b): 

#include<stdio.h>

int main()

{

float P, T, R, interest;

printf("Enter the Principal amount deposited\t");

scanf("%f",&P);

printf("Enter the Time period of deposition (in year)\t");

scanf("%f",&T);

printf("Enter the Rate of interest\t");

scanf("%f",&R);

interest=(P*T*R)/100;

printf("================================================\n");

printf("The principal amount deposited is Rs. %.2f\n",P);

printf ("The amount is deposited for %.2f years\n",T);

printf("The interest is %.2f percent\n",R); 

printf("The intereset amount is %f\n",interest);

printf("The total amount is %f",P+interest);

}