using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var people = new[]

        {

            new

            {

                Name = "Vernon",

                Age = 21

            },

                new

            {

                Name = "Carrie",

                Age = 24

            },

                new

            {

                Name = "Joanna",

                Age = 20

            }

        };

        var max = people.Max(arg => arg.Age);

        Console.WriteLine(max);

    }

}