Machine Problem

Write a C# program that will input your grades in different subjects last year

and display the average grade, highest grade and lowest grade.

Sample Output:

Enter grade in English: 89

Enter grade in Math: 91

Enter grade in Filipino: 92

Enter grade in Science: 88

Average: 90

Lowest Grade: 88

Highest Grade:92

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me at the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.

My email address is the following,, and

My mobile number here in the Philippines is 09173084360.

Please subscribe to my channel


Want to support my channel?

GCash Account

Jake Pomperada




Thank you very much for your support.
Program Listing
using System;  

/* average.cs
   Author    : Jake Rodriguez Pomperada, MAED-IT, MIT
   Tools     : C# 
   Date      : September 27, 2022    Tuesday   3:58 PM
   Website   :
   Email     :

public class average
    public static void Main()  
    int[] arr = new int[4]; 
   int i=0;
    int average = 0; 
    int total_grades = 0;  

       Console.Write("\n\tAverage Grade, Highest Grade and Lowest Grade in C#\n");
    string[] subjects = new string[4];
        subjects[0] = "English";
        subjects[1] = "Math";
        subjects[2] = "Filipino";
        subjects[3] = "Science";
     for (i = 0; i < arr.Length; i++)
            string element = subjects[i];
        Console.Write("\tEnter Grade in {0}     : ",element);
	    arr[i] = Convert.ToInt32(Console.ReadLine());  		
        total_grades+= arr[i];
        average = total_grades/4; 

  int Highest_Grade = arr[0];
  int Lowest_Grade = arr[0];

    for(i=0; i<4; i++)
        if(arr[i]> Highest_Grade)
            Highest_Grade = arr[i];

            Lowest_Grade = arr[i];
    Console.Write("\tAverage        : {0}     \n",average);
    Console.Write("\tLowest  Grade  : {0}     \n",Lowest_Grade);
    Console.Write("\tHighest Grade  : {0}     \n",Highest_Grade);
    Console.Write("\tEnd of Program");