expressions in Ruby language

rubyExpressions3.rb

# Shopping Bill exercise
# Calculate the average amount spent on groceries over 5 weeks
#
print "How much was spent on groceries for week 1? "
week1 = gets.chomp().to_f

print "Week 2? "
week2 = gets.chomp().to_f
 
print "Week 3? "
week3 = gets.chomp().to_f
 
print "Week 4? "
week4 = gets.chomp().to_f
 
print "Week 5? "
week5 = gets.chomp().to_f
 
groceries = [week1, week2, week3, week4, week5]
 
groceriesTotal = groceries[0] + groceries[1] + groceries[2] + groceries[3] + groceries[4]
 
groceriesAverage = groceriesTotal / groceries.length
 
puts "You have spent a total of $#{groceriesTotal} on groceries over 5 weeks. That is an average of $#{groceriesAverage} per week."