diff --git a/lib/binary_to_decimal.rb b/lib/binary_to_decimal.rb
index 439e8c6..14937c6 100644
--- a/lib/binary_to_decimal.rb
+++ b/lib/binary_to_decimal.rb
@@ -4,6 +4,12 @@
 # The least significant bit is at index 7.
 # Calculate  and return the decimal value for this binary number using
 # the algorithm you devised in class.
-def binary_to_decimal(binary_array)
-  raise NotImplementedError
+
+array = Array.new(8) { rand(0..1) }
+
+def binary_to_decimal(array)
+  reversed_array = array.reverse
+  return reversed_array.map.with_index {|value, index| (2**index) * value}.sum
 end
+
+puts binary_to_decimal(array)