21.01 Convert Speed Units

using System;
class Program
{
    static void Main()
    {
        uint meters = uint.Parse(Console.ReadLine());
        byte hours = byte.Parse(Console.ReadLine());
        byte minutes = byte.Parse(Console.ReadLine());
        byte seconds = byte.Parse(Console.ReadLine());

        ushort time = (ushort)(hours * 3600 + minutes * 60 + seconds);

        float metersPerSec = (float)meters / time;
        float kilometersPerHour = (float)meters / 1000 / ((float)time / 3600);
        float milesPerHour = (float)meters / 1609/ ((float)time / 3600);

        Console.WriteLine("{0:0.#######}", metersPerSec);
        Console.WriteLine("{0:0.#######}", kilometersPerHour);
        Console.WriteLine("{0:0.#######}", milesPerHour);
    }
}