Question

Wildlife Population A species of bat is in danger of becoming extinct. Five years ago, the total population of the species was 2000 . Two years ago, the total population of the species was 1400 . What was the total population of the species one year ago?

Answer 1

To find the total population of the species one year ago, we need to calculate the average annual decrease in population.

The difference in population between five years ago and two years ago is 2000 - 1400 = 600 bats.

So, on average, the population decreased by 600/3 = 200 bats per year.

Therefore, the total population one year ago was 1400 + 200 = 1600 bats.