johns python practice two

# number of cars
cars = 100
# number of drivers + passengers per car
space_in_a_car = 4.0
# number of drivers
drivers = 30
# number of passengers
passengers = 90
# computes cars without drivers
cars_not_driven = cars - drivers
# A useless variable, but could be modified to be "optimized nubmer of drivers"
cars_driven = drivers
# calculates the number of free spaces, but the space per car should probably 
# include the drivers, so either the space_in_a_car should be decreased, or 
# the average passengers per car should be recalculated, as a driver is not a passenger!
carpool_capacity = cars_driven * space_in_a_car
#I'm changing this from passengers / cars_driven to (passengers+drivers)/cars driven
average_passengers_per_car = (passengers+drivers) / cars_driven
#note that we can do math, but that printing is the only way to display what is
#being done
print "There are", cars, "cars available."
print "There are only", drivers, "drivers available."
print "There will be", cars_not_driven, "empty cars today."
print "We can transport", carpool_capacity, "people today."
#I modified below to show that drivers are also part of the carpool
print "We have", passengers+drivers, "to carpool today."
print "We need to put about", average_passengers_per_car, "in each car."

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