"""

Code example from Think Python, by Allen B. Downey.

Available from http://thinkpython.com

Copyright 2013 Allen B. Downey.

Distributed under the GNU General Public License at gnu.org/licenses/gpl.html.

If you run a 10 kilometer race in 43 minutes 30 seconds, what is your

average time per mile? What is your average speed in miles per hour?

(Hint: there are 1.61 kilometers in a mile).

"""

minutes = 43.5

hours = minutes / 60

km_per_mile = 1.61

km = 10

miles = km / km_per_mile

pace = minutes / miles

mph = miles / hours

print 'Pace in minutes per mile:', pace

print 'Average speed in mph:', mph