title: Ruby function to check if a number is divisible by five and is even
body: <pre><code>def is_even?(n)
    remainder_when_divided_by_2 = n % 2
  
    if remainder_when_divided_by_2 == 0
      return true
    else
      return false
    end
  end
  
  def is_odd?(n)
    return ! is_even?(n)
  end
  
  puts "1 is_even? #{is_even?(1)} - is_odd? #{is_odd?(1)}"
  puts "2 is_even? #{is_even?(2)} - is_odd? #{is_odd?(2)}"
  puts "3 is_even? #{is_even?(3)} - is_odd? #{is_odd?(3)}"
  puts "4 is_even? #{is_even?(4)} - is_odd? #{is_odd?(4)}"
  puts "5 is_even? #{is_even?(5)} - is_odd? #{is_odd?(5)}"
  puts "6 is_even? #{is_even?(6)} - is_odd? #{is_odd?(6)}"
  
  def is_even_and_divisible_by_five?(n)
    remainder_when_divided_by_five = n % 5
  
    if (remainder_when_divided_by_five == 0) &amp;&amp; (is_even?(n) == true)
      return true
    else
      return false
    end
  
  end
  
  puts "5 is_even_and_divisible_by_five? #{is_even_and_divisible_by_five?(5)}"
  puts "10 is_even_and_divisible_by_five? #{is_even_and_divisible_by_five?(10)}"
  puts "15 is_even_and_divisible_by_five? #{is_even_and_divisible_by_five?(15)}"
  puts "20 is_even_and_divisible_by_five? #{is_even_and_divisible_by_five?(20)}"
  puts "25 is_even_and_divisible_by_five? #{is_even_and_divisible_by_five?(25)}"
  puts "30 is_even_and_divisible_by_five? #{is_even_and_divisible_by_five?(30)}"
  </code></pre>
  
  <p>The problem was I had not called the method is_even_and_divisible_by_five in the puts commands at the bottom of the code. I called it is_even_and_divisble_by_5.  Then in the if statement in the is_even_and_divisble_by_five method, I left of the (n) arguement from Is_even.  Thank you all very much!</p>