Problem E2 Write a program that determines a student\'s letter grade. Allow the

Question

Problem E2

Write a program that determines a student's letter grade. Allow the user to enter three test scores. The maximum score on each test is 100 points. Determine the letter grade from the average of the test scores, using the following:

90% or more A

80% or more, but less than 90% B

70% or more, but less than 80% C

60% or more, but less than 70% D or F, to be determined from additional information

less than 60% F

Only if the grade needs to be determined between D and F, allow the user to enter the number of homework assignments the student turned in, and the total number of homework assignments. If more than 80% of the homework assignments were turned in, the letter grade is D, otherwise F.

Test it 4 times:

96 84 90

95 83 90

70 59 60 with 5 homework out of 6 turned in

73 58 65 with 8 homework out of 11 turned in

Compute the results by hand and check your results.

(C++, I USE CODEBLOCKS)

Explanation / Answer

#include <iostream>

using namespace std;

int main()
{
int test1,test2,test3,total;
int i,n;
cout<<"Enter the marks of three test::";
cin>>test1>>test2>>test3;

if(test1>100||test2>100||test3>100)
    cout<<"Maximum marks in test is 100. Please try again";

total = test1+test2+test3;
if(total>=300*0.9)
    cout<<"A";
else if(total>=300*0.8)
    cout<<"B";
else if(total>=300*0.7)
    cout<<"C";
else if(total>=300*0.6)
{
    cout<<"Enter number of assignments you were required to submit::";
    cin>>n;
    cout<<"How many of them you submitted? ";
    cin>>i;
    if(i*1.0/n > .80)
      cout<<"D";
    else
      cout<<"F";
}else
cout<<"F";

cout<<endl;
return 1;
}

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