TASK 1

def fizzbuzz(start,finish)
  (start..finish).each do |i|
    if i % 5 == 0 && i % 3 == 0
      puts "FizzBuzz"
    elsif i % 5 == 0
      puts "Buzz"
    elsif i % 3 == 0
      puts "Fizz"
    else
      puts i
    end
  end
end



TASK 2 (with help)

def fizzbuzz(start = 0, finish = 100)
  start.upto(finish) do |i|
    puts rules(i)
  end
end

def rules(number)
    result = ''
    result << "Fizz" if number % 3 == 0
    result << "Buzz" if number % 5 == 0
    result = result.empty? ? number : result
end

fizzbuzz