following is code for calculating average of  3 variableswith user input and without.


  • code with user input:-


#include<iostream.h>
void main()
{
int a,b,c;
float d;
cout<<"enter the value of a,b,c";
cin>>a>>b>>c;
d=(float)(a+b+c)/3;
cout<<"Average of 3 variables is ="<<d;
}



  • code without user input:-


#include<iostream.h>
void main()
{
int a,b,c;
float d;
a=10;
b=17;
c=15;
d=(float)(a+b+c)/3;
cout<<"Average of 3 variables is ="<<d;
}


note:-it's just a sudo code if its not executing on your device make some changes in the further code this is only for understanding logic.

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