Answer:
The answer is: It will take Mexico 28 years
Explanation:
In 2005, Mexico´s GDP per capita (MGDPpC) was only $11,000 which represented one fourth of the United States´ GDP per capita (USGDPpC) of $44,000.
The ratio of GDP per Capita between Mexico and the United States is 1:4
So when MGDPpC doubles the first time, the ratio will be 2:4 (or 1:2), so when it doubles again the ratio will b 1:1. So in order for MGDPpC to equal the amount of USGDPpC in 2005, it would need to double twice.
To find out how many years it will take Mexico to double its GDP per capita once, we must divide 70 by 5, which equals 14 years.
Since it takes Mexico 14 years to double its GDP per capita, it will take them 28 years to double it twice.