Question

A country currently has a population of 100 million and an annual growth rate of 3.5 percent. If the growth rate remains constant, it meas that

Answer 1

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 $( 1 + g )^{n}$

Population after 40 years =  100 million x $( 1 + 0.035 )^{40}$

Population after 40 years =  100 million x $( 1.035 )^{40}$

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 )