khaldon asfor
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication7
{
class Program
{
static void Main(string[] args)
{
double m, b, c, a , average ;
Console.WriteLine("plz enter the grade of math");
m= double.Parse(Console.ReadLine());
if(m==100)
Console.WriteLine("math ideal");
if (m >90 && m<100)
Console.WriteLine("math exellent");
if (m > 80 && m < 89)
Console.WriteLine(" math very good");
if (m > 70 && m < 79)
Console.WriteLine("math good");
if (m > 60 && m < 69)
Console.WriteLine("math satisfaction");
if (m >= 50 && m < 59)
Console.WriteLine("math bad");
if (m < 50)
Console.WriteLine("math fail");
Console.WriteLine("plz enter the grade of biolige");
b = double.Parse(Console.ReadLine());
if (b == 100)
Console.WriteLine("biolige ideal");
if (b > 90 && b < 100)
Console.WriteLine("biolige exellent");
if (b > 80 && b < 89)
Console.WriteLine("biolige very good");
if (b > 70 && b < 79)
Console.WriteLine("biolige good");
if (b > 60 && b < 69)
Console.WriteLine("biolige satisfaction");
if (b >= 50 && b < 59)
Console.WriteLine("biolige bad");
if (b < 50)
Console.WriteLine("biolige fail");
Console.WriteLine("plz enter the grade of chemistry");
c= double.Parse(Console.ReadLine());
if (c == 100)
Console.WriteLine("chemistry ideal");
if (c > 90 && c < 100)
Console.WriteLine("chemistry exellent");
if (c > 80 && c < 89)
Console.WriteLine("chemistry very good");
if (c > 70 && c < 79)
Console.WriteLine("chemistry good");
if (c > 60 && c < 69)
Console.WriteLine("chemistry satisfaction");
if (c >= 50 && c < 59)
Console.WriteLine("chemistry bad");
if (c < 50)
Console.WriteLine("chemistry fail");
a = m + b + c;
average = a / 3;
Console.WriteLine(" average is" + average);
if (average == 100)
Console.WriteLine("average ideal");
if (average > 90 && average < 100)
Console.WriteLine("average exellent");
if (average > 80 && average < 89)
Console.WriteLine("average very good");
if (average > 70 && average < 79)
Console.WriteLine("average good");
if (average > 60 && average < 70)
Console.WriteLine("average satisfaction");
if (average > 50 && average < 59)
Console.WriteLine("average bad");
if (average < 50)
Console.WriteLine("average fail");
Console.ReadKey();
}
}
}
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