Rubio decides he is going to walk to his friend's house, which is 1 mile from his house. He can walk at a pace of mile in 16 minutes. At this rate, how long will it take him to get to his friend's house?

If it takes Rubio 16 minutes to walk 1 mile, it will take him 16 * 1 = <<16*1=16>>16 minutes to walk to his friend's house. Answer: \boxed{16}.