Answer:
14 years
Explanation:
Given:
Leader country GDP = $50,000
Follower country GDP = $25,000
Growth rate of follower country = 5%
It is given that growth rate of leader country is "0" So real GDP will be $50,000.
Follower country GDP is half.
So, according to double match formula
Number of years to double = 70 years / rate of growth
Number of years to double = 70 years / 5%
Number of years to double = 14 year
So, In 14 years follower country will catch the GDP of Leader country.