SPA Programs

1.Write a program to calculate the simple interest taking principal, rate of interest and number of years as inputs from user.

#include<stdio.h>

#include<conio.h>

void main ()

{

float rateOfInterest, years, principal, simpleInterest;clrscr();

printf("Enter the principal amount, rate of interest and no. of years:"); scanf("%f%f%f", &principal, &rateOfInterest, &years);

simpleInterest = principal * rateOfInterest*years / 100; printf("The simple interest is %f", simpleInterest) getch();

}

2.Write a program to accept basic salary from the keyboard. Calculate the gross salarythat includes basic salary, 50% DA and 40% HRA.

#include<stdio.h>

#include<conio.h>

void main ()

{

float basic,hra,da,gross;clrscr();

printf("Enter the basic salary:"); scanf("%f", &basic); hra=40*basic/100;

da = 50*basic/100; gross=basic+da+hra;

printf("The total salary is %f",gross);getch();

}

3.Write a program to accept the length and breadth of a rectangle from the user.

Calculate and display the area and perimeter. #include<stdio.h>

#include<conio.h> void main ()

{

float length, breadth, area, perimeter; clrscr();

printf("Enter the length and breadth of the rectangle:"); scanf("%f%f",&length,&breadth);

area= length * breadth; perimeter= 2* (length + breadth);

printf("The area of rectangle is= %f and its perimeter is = %f", area, perimeter); getch();

}

4.Write the program to accept one it type data and one float type data. Multiply the

two numbers and display the result. #include<stdio.h> #include<conio.h>

void main ()

{

int n1;

float n2, result; clrscr();

printf("Enter one integer and one float type number each:"); scanf("%d %f",&n1,&n2);

result=n1*n2;

printf("The product is :%f",result); getch();

}