Question

The annual decrease in the population of a city was 10% and the present number of inhabitants is 1620.what was the population 2 years hence?

Answer 1

Answer:

present population = 1620

deceased rate = 10%

after two year population

=1620 × 90/100 × 90/100

= 1312.2

Answer 2

Answer:

Step-by-step explanation:

2000

As,

=2000 * 10/100

= 200

2000-200 = 1800

now,

=1800* 10/100

=180

1800-180 = 1620

So the answer is 2000