11. Convert Speed Units

using System;
using System.Numerics;

namespace Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            int distanceInMeters = int.Parse(Console.ReadLine());
            int hours = int.Parse(Console.ReadLine());
            int mins = int.Parse(Console.ReadLine());
            int sec = int.Parse(Console.ReadLine());

            int time = sec + mins * 60 + hours * 3600;

            float meterPerSec = (float)distanceInMeters / time;
            float kmPerHour = ((float)distanceInMeters / 1000) / ((float)time / 3600);
            float milesPerHour = ((float)distanceInMeters / 1609) / ((float)time / 3600);
            Console.WriteLine($"{meterPerSec:0.######}");
            Console.WriteLine($"{kmPerHour:0.######}");
            Console.WriteLine($"{milesPerHour:0.######}");
        }
    }
}