Question

(A)
21 The population of a town in China increases by 20% every year. If its present
population is 2.16,000. find :
(i) its population after 2 years,
(ii) its population 2 years ago.​

Answer 1

Answer:

1) 22,400

2) 9,600

Step-by-step explanation:

To find the answer to this question you first need to find the 20% of the population which is 3200. Then you can add and subtract it to the current population.

i.e. 20/100 *16000 =3,200

Increase in poulation for one year is 3,200

Therefore, increase in population after 2 years will be 3200 + 3200 = 6400.

1) It's population after 2 years will be

16000 + 6400 = 22,400.

2) It's population 2 years ago was

16000 - 6400 = 9,600.