Answer:
D. 400 million
Explanation:
Current Population of the country = 100 million
growth rate per year = g = 3.5%
Number of Years = n = 40 Years
Population after 40 year = ?
To calculate the population after 40 year use following formula:
Population after 40 years = Current year population x ( 1 + growth rate )^ number of years
Population after 40 years = Current year population x [tex]( 1 + g )^{n}[/tex]
Population after 40 years = 100 million x [tex]( 1 + 0.035 )^{40}[/tex]
Population after 40 years = 100 million x [tex]( 1.035 )^{40}[/tex]
Population after 40 years = 100 million x 3.959259
Population after 40 years = 395.93 million
Population after 40 years = 400 million ( Rounded off to nearest hundred )
