using System;

​

public class Program

{

    public static void Main()

    {

        Func<decimal, decimal> RoundCeling = x => Math.Ceiling(x * 10m) / 10m;

        decimal d1 = 10.300m;

        Console.WriteLine(RoundCeling(d1).ToString("F2"));

        decimal d2 = 10.301m;

        Console.WriteLine(RoundCeling(d2).ToString("F2"));

        decimal d3 = 10.333m;

        Console.WriteLine(RoundCeling(d3).ToString("F2"));

    }

}