Answer:
option (B) 35 years
Step-by-step explanation:
Given:
Real per capita GDP of Sweden = $50,000
Real per capita GDP of Chile = $25,000
Growth rate of Sweden = 2%
Growth rate of Chile = 4%
As per the Rule of 70, the economy's GDP doubles in

Therefore,
The GDP of Sweden will double in =
= 35 years
and,
Chile will double in
= 17.5 years
Therefore,
in 35 years the GDP of Sweden will be $100,000
and,
In 35 years the GDP of Chile will also be ($50,000 in 17.5 years and $100,000 in next 17.5 years) = $100,000
Therefore,
The real GDP per capita in the two nations to converge in 35 years
Hence,
The correct answer is option (B) 35 years