Problem 11.4 - Keeping track of Time Elapsed in a Race

Write a function called mul_time that takes a Time_Elapsed object and a number and returns a new Time_Elapsed object that contains the product of the original object and the number. Then use mul_time to write a function that takes a Time_Elapsed object that represents the finishing time in a race, and a number that represents the distance, and returns a Time object that represents the pace (time per mile). The function should return a nicely formatted pace in hour,

minutes and second per mile