Question

the population of a town decreases exponentially at a rate of 1.7% p.a.the population now is 250000 calculate population at end of 5 years

Answer 1

Answer:

Population after 5 years=229450

Step-by-step explanation:

Initially population=250000

Population decreases at the rate of 1.7% per year.

Let P=250000

Rate=1.7%

Time=5 years

So population at the end of 5 years=P[1+(r/100)]^t

=250000[1-(1.7/100)]^5

=250000[0.983]^5

=250000[0.9178]

=229450