Every ten years, the Census counts how many people are living in every town in the United States.
The 2010 Census showed that 1,000 people were living in Appleville,
and 4,000 people were living in Bridgetown.
The population of Appleville is predicted to double every ten years.
The population of Bridgetown is predicted to increase by 1,000 every
ten years.
If the predictions come true, what will be the first census year that will show
Appleville with a larger population than Bridgetown?