Question

Write a c++ program to compute and print the grade for one student. The grade is based on three mid-term exams (worth a possible 25 points each) of which the best two are only considered in the computation, two quizzes (5 points each), and a 40 points final exam. Your output should include all scores (2 best midterms, 2 quizzes and the final exam), the percentage grade, and the letter grade. Solve it using nested if. The grading scale is: Percentage Grade (PG) Letter Grade PG >= 90% A 80% <= PG < 90% B 70% <= PG < 80% C 60% <= PG < 70% D PG < 60% F

Answer 1

Dear Student,

below i have written the complete CPP program as per the requirement.

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Program:

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//Header files

#include<iostream>

using namespace std;

//start of the main function

int main()

{

//variable declration

int midterm[3];
int quiz1, quiz2;
int index;
char grade;
int final_marks, total = 0;

//accept the three midterm marks

for(int i = 0; i<3; i++)
{
cout<<"Enter the midterm exam "<<i+1<<" marks: ";
cin>>midterm[i];
}

//initialize the min and max midterm marks

int min = midterm[0];
int max = midterm[0];
int sum = 0;

//calculate the min and max midterm marks and the sum of all the midterm marks

for(int i = 0; i<3; i++)
{
sum = sum + midterm[i];
if(midterm[i]<min)
{
min = midterm[i];
}
if(midterm[i]>max)
{
max=midterm[i];
}
}

//accpet the quiz marks

cout<<"Enter the quiz1 marks: ";

cin>>quiz1;

cout<<"Enter the quiz2 marks: ";

cin>>quiz2;

cout<<"Enter the final exam marks: ";

cin>>final_marks;

//calculate the total marks ignoring the least midterm marks

total = midterm[0] + midterm[1] + midterm[2] + quiz1 + quiz2 + final_marks - min;

//find the letter grade

if(total>=90)
{
grade='A';
}
else if(total>=80 && total<90)
{
grade='B';
}
else if(total>=70 && total<80)
{
grade='C';
}
else if(total>=60 && total<70)
{
grade='D';
}
else if(total<60)
{
grade='F';
}

cout<<endl;

//display the marks and the letter grade

cout<<"First best midterm score is: "<<max<<endl;
cout<<"Second midterm score is: "<<sum - max - min<<endl;
cout<<"First quiz score is: "<<quiz1<<endl;
cout<<"Second quiz score is: "<<quiz2<<endl;
cout<<"Final exam marks are: "<<final_marks<<endl;
cout<<"The percentage grade is: "<<total<<endl;
cout<<"The letter grade is: "<<grade<<endl;
return 0;

}
//end of the main function

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Sample Output:

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Kindly Check and Verify Thanks...!!!