something for verifying / calculating powerball numbers

powerball.rb

@actual_numbers = [4, 8, 19, 27, 34, 10]

def powerball_match?(numbers)
  @actual_numbers.last == numbers.last
end

def white_ball_matches?(numbers, minimum_match_count)
  numbers.select { |number| @actual_numbers[0..-2].include? number }.count >= minimum_match_count
end

def powerball_plus_whites?(numbers, minimum_match_count)
  @actual_numbers.last == numbers.last && white_ball_matches?(numbers, minimum_match_count)
end

def generate_quick_picks(num)
  white_balls = [*1..69]
  power_balls = [*1..26]
  
  num.times do
    puts "#{white_balls.sample} #{white_balls.sample} #{white_balls.sample} #{white_balls.sample} #{white_balls.sample} #{power_balls.sample}"
  end
end

numbers_collection = [[]]
  
result = numbers_collection.reduce("") do |outcome, numbers|
  outcome << "JACKPOT: #{numbers}\n"     if powerball_plus_whites?(numbers, 5)
  outcome << " $1,000,000: #{numbers}\n" if white_ball_matches?(numbers, 5)
  outcome << " $50,000: #{numbers}\n"    if powerball_plus_whites?(numbers, 4)
  outcome << " $100: #{numbers}\n"       if white_ball_matches?(numbers, 4) ||  powerball_plus_whites?(numbers, 3)
  outcome << " $7: #{numbers}\n"         if powerball_plus_whites?(numbers, 2) || white_ball_matches?(numbers, 3)
  outcome << " $4: #{numbers}\n"         if powerball_match?(numbers) || powerball_plus_whites?(numbers, 1)                         
  outcome
end

puts result