using System;

public class Program

{

    static int ctr;

    static double grade;

    static double average = 0.0;

    static double total = 0;

    static string decGrade = "", remarks = "";

    public static void Main()

    {

            for (ctr = 1; ctr <= 5; ctr++)

            {

                Console.Write("Enter quiz value {0}: ", ctr);

                grade = Convert.ToDouble(Console.ReadLine());

                total = total + grade; 

            } 

            ComputeAverage();

            GetDecimalGrade();

            GetRemarks();

        } 

        static void GetDecimalGrade()

        {

            if ((average >= 50.00) && (average <= 74.49))

                decGrade = "5.00";

            else if ((average >= 74.50) && (average <= 75.49))

                decGrade = "3.00";

            else if ((average >= 75.50) && (average <= 78.49))

                decGrade = "2.75";

            else if ((average >= 78.50) && (average <= 81.49))

                decGrade = "2.50";

            else if ((average >= 81.50) && (average <= 84.49))

                decGrade = "2.25";

            else if ((average >= 84.50) && (average <= 87.49))

                decGrade = "2.00";

            else if ((average >= 87.50) && (average <= 91.49))

                decGrade = "1.75";

            else if ((average >= 91.50) && (average <= 94.49))

                decGrade = "1.50";

            else if ((average >= 94.50) && (average <= 97.49))

                decGrade = "1.25";

            else if ((average >= 97.50) && (average <= 100.00))

                decGrade = "1.00";

​

            Console.WriteLine("Decimal equivalent: {0}", decGrade);

        }

​

        static void GetRemarks()

        {

            if ((average >= 74.50) && (average <= 100.00))

                remarks = "PASS";

            else

                remarks = "FAILURE";

     Console.WriteLine("Remarks: {0}", remarks);

​

         }

        static void ComputeAverage()

        {

            average = total / 5; 

            Console.WriteLine("\nAverage grade: {0}%", average);

​

         }

}