WRITING A CODE IN C++ FOR STUDENT MARKS

 #include<iostream>

using namespace std;

class Student

{

private:

 int roll;

 string name;

 int math marks;

 int phyMarks;

 int chemMarks;

public:

 Student(int r,string n,int m,int p,int c)

 {

 roll=r;

 name=n;

 mathMarks=m;

 phyMarks=p;

 chemMarks=c;

 }

 int total()

 {

 return mathMarks+phyMarks+chemMarks;

 }

 char grade()

 {

 float average=total()/3;

 if(average > 60)

 return 'A';

 else if(average>=40 && average<60)

 return 'B';

 else

 return 'C';

 }

};

int main()

{

 int roll;

 string name;

 int m,p,c;

 cout<<"Enter Roll number of a Student: ";

 cin>>roll;

 cout<<"Enter Name of a Student:";

 cin>>name;

 cout<<"Enter marks in 3 subjects";

 cin>>m>>p>>c;

 Student s(roll,name,m,p,c);

 cout<<"Total Marks:"<<s.total()<<endl;

 cout<<"Grade of Student:"<<s.grade()<<endl;

}