Question

the population of the town is 16500 during last 3 years , population increased at the rate of 20% per year. What was the population 3 years ago?​

Answer 1

Step-by-step explanation:

p=16500

r=20%

t=3 y

so

p*r*t/100

16500*20*3/100=4900

4900+16500=21400 answer

Answer 2

The population 3 years ago was 9548

Step-by-step explanation:

Let the population 3 years ago be x

Rate of increase per year = 20%

Population after 1 year =$x+20\% x = x+0.2x=1.2x$

Population after 2 years =$1.2x+20\%(1.2)x = 1.44x$

Population after 3 years =$1.44x+20\%(1.44)x = 1.728x$

We are given that the population of the town is 16500

So,$1.728x=16500$

$x=\frac{16500}{1.728}$

x=9548.61≈9548

Hence the population 3 years ago was 9548

#Learn more:

The percent population of a town is 52728. If the population grew at the rate of 4% per annum. What was the population 3 years ago??

https://brainly.in/question/1718282