Question

the population of a town decreases to 100000 in the year 2010 at a rate of 5% per annum . find the population before 5 years in the year 2005.​

Answer 1

Answer:

population in 2010= 100000

Rate = 5%

time = 5 years

therefore population in 2005 = Population in 2010(1+R/100)^5

= 100000(21/20)^5

=4084101/32

= 127628