Question

Write down a Cre program on computer that calculates the grades of the stud f the students for the marks by using "if else statements "for the following conditions. Marks 60 Grade "D" Marks > 60 &&70 Grade "C" Marks > 70 &&80 Grade "B" Marks > 80 && 90 Grade "A" Marks> 90 && -100 Grade "A+"

Answer 1

#include <iostream>
using namespace std;
int main()
{
int n,a[10],Marks,total=0,i;
cout<<"Enter number of subjects";
cin>>n;
for(i=1;i<=n;i++)
{
cout<<"Enter marks for subject "<<i<<":";
cin>>a[i];
total=total+a[i];
}
Marks=total/n;
cout<<"Total Marks are:"<<Marks<<endl;
if(Marks<=60)
{
cout<<"Grade D"<<endl;
}
else if(Marks>60 && Marks<=70)
{
cout<<"Grade C"<<endl;
}
else if(Marks>70 && Marks<=80)
{
cout<<"Grade B"<<endl;
}
else if(Marks>80 && Marks<=90)
{
cout<<"Grade A"<<endl;
}
else if(Marks>90 && Marks<=100)
{
cout<<"Grade A+"<<endl;
}
return 0;
}