22. Write a program to calculate average and total of 5 students for 3 subjects (use nested for loops). #include<stdio.h> #include<conio.h> int main() { int i,j,n,sum=0; for(i=0;i<5;i++) { printf("student %d",i+1); for(j=0;j<3;j++) { printf("\nmarks%d : ",j+1); scanf("%d",&n); sum+=n; } printf("sum : %d\n",sum); printf("average : %f\n",(float)sum/3); } getch(); return 0; } Sample Output Previous Program Next Program
21. Write a C program to find the sum and average of different numbers which are accepted by user as many as user wants. #include<stdio.h> #include<conio.h> int main() { int sum=0,n,num,i; float avg; printf("\nEnter n : "); scanf("%d",&n); for(i=1;i<=n;i++) { printf("Enter number %d :",i); scanf("%d",&num); sum=sum+num; } avg=(float)sum/n; printf("\nsum is %d",sum); printf("\nAverage is %f",avg); getch(); return 0; } Sample output Previous Program Next Program
7. Write a C program to find out distance travelled by the equation d = ut + 0.5at^2. #include>stdio.h< #include>conio.h< int main() { float u,t,a,d; printf("\nEnter initial velocity u : "); scanf("%f",&u); printf("\nEnter time t : "); scanf("%f",&t); printf("\nEnter Acceleration a : "); scanf("%f",&a); d = u*t + 0.5*a*t*t; printf("\n\nDistance traveled by object : %f",d); getch(); return 0; } Sample output Previous Program Next Program
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