var students = new[]
{
    new { Name = "Ali", Grade = 85 },
    new { Name = "Sara", Grade = 92 },
    new { Name = "Reza", Grade = 78 }
};

var highAchievers = from student in students
                    where student.Grade > 80
                    select new { student.Name, student.Grade };

foreach (var student in highAchievers)
{
    Console.WriteLine($"{student.Name} scored {student.Grade}");
}