Question

You are considering purchasing a robot to help you with household chores such as vacuuming. While you are researching​ options, you learn more about numeration and other bases. Many electronics are programmed in base two. Computers​ don't use ten digits but instead code things as 0 and 1. There are millions of little switches that are either on or off. The robot is programmed in binary​ numbers, or base two. The place values in a base two system are​ 1, 2,​ 4, 8,​ 16, etc.​ (powers of​ 2) instead of the base ten system place values of​ 1, 10,​ 100, 1000, etc.​ (powers of​ 10). How would the robot think of the number 16 in base​ two?

Answer 1

It will be the 5th number. 
This question is basically asking what does 16 mean to 2. 16 is 2^5.