Homework Data Types and variables

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _11.Convert_Speed_Units
{
    class ConvertSpeedUnits
    {
        static void Main(string[] args)
        {
            double distanceInMeters = double.Parse(Console.ReadLine());
            double distanceInKilometers = (double)(distanceInMeters / 1000);
            double distanceInMile = (double)(distanceInMeters / 1609);
            double hours = double.Parse(Console.ReadLine());
            double minutes = double.Parse(Console.ReadLine());
            double seconds = double.Parse(Console.ReadLine());

            double totalSecond = (hours * 60 * 60) + (minutes * 60) + seconds;
            double totalHours = totalSecond / 3600;
            double firstSolve = distanceInMeters / totalSecond;
            double secondSolve = distanceInKilometers / totalHours;
            double thirdSolve = distanceInMile / totalHours;

            if (firstSolve == (int)firstSolve)
            {
                if (firstSolve >= 10)
                    Console.WriteLine("{0}", firstSolve);
                else
                    Console.WriteLine("{0}", firstSolve);
            }
            else
            {
                if (firstSolve > 10)
                    Console.WriteLine("{0:F5}", firstSolve);
                else
                    Console.WriteLine("{0:F6}", firstSolve);
            }




            if (secondSolve == (int)secondSolve)
            {
                if (secondSolve >= 10)
                    Console.WriteLine("{0}", secondSolve);
                else
                    Console.WriteLine("{0}", secondSolve);
            }
            else
            {
                if (secondSolve > 10)
                    Console.WriteLine("{0:F5}", secondSolve);
                else
                    Console.WriteLine("{0:F6}", secondSolve);
            }



            if (thirdSolve == (int)thirdSolve)
            {
                if (thirdSolve >= 10)
                    Console.WriteLine("{0}", thirdSolve);
                else
                    Console.WriteLine("{0}", thirdSolve);
            }
            else
            {
                if (thirdSolve > 10)
                    Console.WriteLine("{0:F5}", thirdSolve);
                else
                    Console.WriteLine("{0:F6}", thirdSolve);
            }

        }
    }
}