Suppose a country's annual growth rate of real gdp per capita is approximately 2%. by which year would the country double its real gdp per capita from $10,000 in 1950 to $20,000?
a.1970
b.1985
c.2000
d.2005
It should be 1986, but for the sake of the options it's most likely 1985. You just have to do trial and error. So 10,000 Ă— 1.02^t (where t is the time in years). I've got 1.02 because it's a 2% increase from 100% (Basically decimal form).