adding ex6

ex6.rb

@@ -0,0 +1,20 @@
+x = "There are #{10} types of people."
+binary = "binary"
+do_not = "don't"
+y = "Those who know #{binary} and those who #{do_not}."
+
+puts x
+puts y
+
+puts "I said: #{x}"
+puts "I also said: '#{y}'."
+
+hilarious = false
+joke_evaluation = "Isn't that joke so funny?! #{hilarious}"
+
+puts joke_evaluation
+
+w = "This is the left side of..."
+e = "a string with a right side."
+
+puts w + e