Question

C++

Write a program that calculates and prints the total grade for n assignments
as a percentage. Prompt the user to enter the value of n, followed by the number
of points received and number of points possible for each assignment . Calculate
and print the total number of points received, total number of points possible,
and the overall percentage: (total points received / total points possible) * 100.

Output:

Enter·number·of·assignments·to·input:3↵

Enter·number·of·points·received·for·assignment·1 :10↵

Enter·number·of·possible·points·for·assignment·1 :10↵

Enter·number·of·points·received·for·assignment·2 :7↵

Enter·number·of·possible·points·for·assignment·2 :12↵

Enter·number·of·points·received·for·assignment·3 :5↵

Enter·number·of·possible·points·for·assignment·3 :8↵

our·total·amount·of·points·is·22·out·of·30,·or·73.33%.↵

Answer 1

Program:

#include<iostream>
#include<iomanip>
using namespace std;

int main()
{
   int n;
   int totalPointsReceived=0, totalPointsPossible=0;
   double overallPercentage;
   int pointsReceived,pointsPossible;
  
   //prompt and read the number of assignments
   cout<<"\nEnter number of assignments to input: ";
   cin>>n;
  
   //run a loop to read n number of point
   for(int i=0;i<n;i++)
   {
       //prompt and read points received
       cout<<"\nEnter number of points received for assignment "<<(i+1)<<" : ";
       cin>>pointsReceived;
      
       //prompt and read points possible
       cout<<"\nEnter number of possible points for assignment "<<(i+1)<<" : ";
       cin>>pointsPossible;
      
       //add the points to totalPointsReceived
       totalPointsReceived=totalPointsReceived+pointsReceived;
      
       //add the points to totalPointsPossible
       totalPointsPossible=totalPointsPossible+pointsPossible;
   }
  
   //calculate the overall percentage
   overallPercentage = ((double)totalPointsReceived / (double)totalPointsPossible) * 100.00;
  
   //print the output
   cout<<"\nOur total amount of points is "<<totalPointsReceived<<" out of "<<totalPointsPossible<<" or "<<setprecision(4)<<overallPercentage<<"%";
   return 0;
}

Output: