Question

C++

1. Write a program that determines a student’s grade. The program will read three types of scores

(quiz, mid-term, and final scores), calculate the average and determine the grade based on the

following rules:

90% and above: A

80%-89%: B

70%-79%: C

50%-60%: D

0-49%: F

Answer 1

#include <iostream>

using namespace std;

char getLetterGrade(double score){
   char letter;
   if(score < 60)
        letter = 'F';
    else if(score < 70)
        letter = 'D';
    else if(score < 80)
        letter = 'C';
    else if(score < 90)
        letter = 'B';
    else
        letter = 'A';
    return letter;
}

int main(){
   double quiz, midTerm, final, avg;
   
   cout<<"Enter quiz score: ";
   cin>>quiz;
   
   cout<<"Enter mid term score: ";
   cin>>midTerm;
   
   cout<<"Enter final score: ";
   cin>>final;
   
   avg = (quiz + midTerm + final)/3;
   
   cout<<"Average = "<<avg<<endl;
   
   cout<<"Letter grade = "<<getLetterGrade(avg)<<endl;
   
   return 0;
}