percentage of marks=(total marks)/ number of subjects
program:
#include< iostream>
int main() {
int m1,m2,m3,m4,m5,total;
float percentage;
cout<<"Enter mark in Subject1"<< endl;
cin>>m1;
cout<<"Enter mark in Subject2"<< endl;
cin>>m1;
cout<<"Enter mark in Subject3"<< endl;
cin>>m1;
cout<<"Enter mark in Subject4"<< endl;
cin>>m1;
cout<<"Enter mark in Subject5"<< endl;
cin>>m1;
total=m1+m2+m3+m4+m5;
percentage=total/5;
cout<<"Percentage is "<< percentage;
}
Enter mark in subject1
90
Enter mark in subject2
40
Enter mark in subject3
70
Enter mark in subject4
80
Enter mark in subject5
100
Percentage is 76.000000