Programming basics Exam 18Dec 01. Distance

using System;

namespace Testing
{
    class MainClass
    {
        public static void Main (string[] args)

        {
            float firstSpeed = int.Parse (Console.ReadLine ());
            float firstTime = float.Parse (Console.ReadLine ());
            float secondTime = float.Parse (Console.ReadLine ());
            float thirdTime = float.Parse (Console.ReadLine ());

            //Formating to hours
            firstTime /= 60;
            secondTime /= 60;
            thirdTime /= 60;

            float firstLine = firstSpeed * firstTime;
            double secondLine = (firstSpeed*1.10) * secondTime;
            double thirdLine = (firstSpeed * 1.10 ) * 0.95* thirdTime;
            double overallKm = firstLine + secondLine + thirdLine;
            Console.WriteLine("{0:f2}",overallKm);


        }
    }
}