Question

the population of a city increased from 1200 to 2000 find the percentage increase in population. ​

Answer 1

Answer:

Let the population be P.  

So, the increased population will be P+1200.  

The population after 11% decrease in population becomes P−32.  

Therefore,

P−32=(P+1200)−  

100

11

​  

(P+1200)

P=10000

So, the total population is 10000.