Question

the estimated population of egypt in 2011 is about 81 million. this is a 1.8% growth rate over the previous year. assuming this continues what would be the population be in 2005?

Answer 1

Population of Egypt in 2005 is 72.64 million.

Explanation:

We have ,The estimated population of Egypt in 2011 is about 81 million. this is a 1.8% growth rate over the previous year. According to question , population in year 2010 = population in year 2011 - 1.8% of population in year 2011 i.e.

population in year 2010 =
`81 - (81(1.8))/(100)` = 79.52 million

Similarly, population in year 2009 =
`79.52 - (79.52(1.8))/(100)` = 78.10 million

population in year 2008 =
`78.10 - (78.10(1.8))/(100)` = 76.70 million

population in year 2007 =
`76.70 - (76.70(1.8))/(100)` = 75.32 million

population in year 2006 =
`75.32 - (75.32(1.8))/(100)` = 73.97 million

population in year 2005 =
`73.97 - (73.97(1.8))/(100)` = 72.64 million

Therefore, population of Egypt in 2005 is 72.64 million.