multiples of 3 and 5

def multiple_of_three?(number)
    number % 3 == 0
end

def multiple_of_five?(number)
    number % 5 == 0
end

def ping_pong_iterate(range)
    range.each do |number|
        word = word_or_number(number)
        puts word
    end
end

def word_or_number(word = '', number)
    word << 'APing' if multiple_of_three?(number)
    word << 'BPong' if multiple_of_five?(number)

    word.empty? ? number : word
end

range = (1..100)
ping_pong_iterate(range)