expressions in Ruby language with Rails support

rubyExpressions6.rb

require 'active_support/core_ext/enumerable.rb' # <= enables the use of array.sum with rails installed. (bit.ly/mCblb)·
 
# Marathon
 
print "Jon, Carla, Jim, and Harry won lottery tickets to run the NYC marathon. The runners now need to get sponsers so together they've g     athered their running stats to see if they qualify for the money. The money people would like to know the average pace between the lotter     y winners to get an idea of how fast their team is. Calculate the average time it takes for athlete runners to finish a marathon.\n\n"

distance = 26.2 # <= marathon distance in miles
runnersPace = []
 
print "At what pace(minutes per mile) does Jon run a marathon? "
paceJon = gets.chomp().to_f # <= 6 mph
runnersPace.push(paceJon) # => [6]

print "At what pace(minutes per mile) does Carla run a marathon? "
paceCarla = gets.chomp().to_f # <= 6 mph
runnersPace.push(paceCarla) # => [6, 6]

print "At what pace(minutes per mile) does Jim run a marathon? "
paceJim = gets.chomp().to_f # <= 9 mph
runnersPace.push(paceJim) # => [6, 6, 9]
 
print "At what pace(minutes per mile) does Harry run a marathon? "
paceHarry = gets.chomp().to_f # <= 7 mph
runnersPace.push(paceHarry) # => [6, 6, 9, 7]
 
paceAvg = runnersPace.sum / runnersPace.length # => 7
timeAvg = distance * paceAvg # => 183.4 
timeAvgHours = (timeAvg / 60).to_i # => # => 3 
timeAvgMins = (timeAvg % 60).to_i # => 3
 
puts "The average time to finish a marathon between Jon, Carla, Jim, and Harry is #{timeAvgHours} hours and #{timeAvgMins} mins."