C Programming Lab Work NEB Class 11

 C Programming LAB Questions with Solutions:

Write a program in C to input 3 numbers and find sum and average.

#include <stdio.h>

void main()

{

int num1, num2, num3, sum, avg;

printf("Enter three numbers : ");

scanf("%d%d%d",&num1, & num2, & num3);

sum=num1+ num2+ num3;

avg=sum/3;

printf("sum = %d ",sum);

printf("average = %d",avg);

}

Write a C program to calculate area and circumference of a circle. (A=3.14xr² and C= 2x3.14xr)

#include <stdio.h>

void main()

{

float pi,r,a,c;

pi = 3.14;

printf("Enter radius : ");

scanf("%f",&r);

a=pi*r*r;

c=2*pi*r;

printf("Area = %.2f \n",a);

printf("Circumference = %.2f",c);

}                                                                           

Write a program in C to find square root and cube root of a number. Use sqrt() and cbrt().

#include <stdio.h>

#include <math.h>

void main()

{

float num1, square_root, cube_root;

printf("Enter a number : ");

scanf("%f",&num1);

square_root = sqrt(num1);

cube_root=cbrt(num1);

printf("Square root = %.2f ",square_root);

printf("cube root = %.2f",cube_root);

}

Write a program in C to calculate and print simple interest (SI) and net amount(A), given that SI=PTR/100 and A=SI+P.

#include<stdio.h>

void main ()
{
float p,t,r,si,a;
printf("Enter principal, time and rate : ");
scanf("%f%f%f",&p,&t,&r);
si=p*t*r/100;
a=si+p;
printf(" Simple interest is %.2f \n ",si);
printf(" Net amount is %.2f ",a);
}

Write a program in C to convert temperature from centigrade(c) into Fahrenheit(f). Use f=1.8*c+32

#include<stdio.h>

void main()

{

float c,f;

printf(" Enter temperature in centigrade ");

scanf("%f",&c);

f=1.8*c+32;

printf(" Temperature in Fahrenheit = %.2f ",f);

}

Write a program in C to calculate value of s using s=ut+1/2at.

#include<stdio.h>

void main ()

{

float u,t,a,s;

printf("Enter initial velocity , time and acceleration \n");

scanf("%f%f%f",&u,&t,&a);

s=u*t+0.5*a*t*t;

printf("Distance covered is %0.2f ",s);

} 

Write a program in C to find total surface area of cuboid using (TSA = 2(lb+bh+hl) ).

#include <stdio.h>

void main()

{

float l, b, h, total_surface_area;

printf("Enter the length, breadth and height of cuboid : ");

scanf("%f%f%f",&l, &b, &h);

total_surface_area= 2((l*b)+(b*h)+(h*l));

printf("Total Surface Area = %.2f \n",total_surface_area);

}

Write a program in C to find sum of two distances measured in kilometer and meter. Hint

Kilometer- 234                     meter-3532

#include <stdio.h>

void main()

{

int km, m,sum, sum_k, sum_m;

printf("Enter the length in Kilometer: ");

scanf("%d",&km);

printf("Enter the length in meter: ");

scanf("%d",&m);

sum = ((km*1000)+m);

sum_k = sum/1000;

sum_m = sum%1000;

printf("Sum of distance is %d Kilometer and %d meter \n",sum_k, sum_m);

}