Question

using C++

1) write a program to calculate to avg of N number of subjects.

2)write a program to find the factorial of 5!

5*4*3*2*1

3)write a program to display the multiplication table for any number

please enter number : 3

1*3=3

2*3=6

2*4=

10*3=30

4) find the factorial on n

Answer 1

1.program to calculate to avg of N number of subjects.

#include <iostream>

using namespace std;

int main()
{
int N;
double k,sum=0;
cin>>N;
for(int i=0;i<N;i++)
{
cin>>k;
sum=sum+k; /* to add the score of total subjects*/

}
double Avg=sum/N;/* average of subjects*/
cout<<Avg;

return 0;
}

2.program to find the factorial of 5!

#include <iostream>

using namespace std;

int main()
{
int sum=1;
for(int i=1;i<=5;i++)
{
sum=sum*i;
}
cout<<sum;
}

3. program to display the multiplication table for any number

#include <iostream>

using namespace std;

int main()
{
int n;
cin>>n; /*taking input of a number*/
for(int i=1;i<=10;i++)
{
cout<<i<<" *"<<n<<" = "<<i*n<<"\n"; /* table of the number taken in input*/
}
return 0;
}

4. program to print factorial of n

#include <iostream>

using namespace std;

int main()
{
int n,sum=1;
cin>>n;
for(int i=1;i<=n;i++)
{
sum=sum*i;// multiplying all the numbers from 1 to n and storing it in sum
}
cout<<sum;
return 0;
}