question_answer

  Consider the following table

Year	Total Population (in millions)	Absolute Increase in the Decade (In million)	Annual Growth Rate (%)
1951	361.0	42.43	1.25
1961	439.2	78.15	1.96
1971	548.2	108.92	2.20
1981	683.3	135.17	2.22
1991	846.4	163.09	2.14
2001	1028.7	182.32	1.93
2011	1210.2	181.45	1.64

The above data reveals that despite the decline in growth rates, the number of people being added every decade is steadily increasing. Why?   

Answer:

                  The number or people increasing every decade = Total population at beginning of the decade X Growth rate. Since the total population is growing every decade, even though the growth rate is reducing, it is not able to offset the increased total population, i.e., base population. So, the number of people being added every decade is steadily increasing.