The population of a city has decreased by 38% since it was last measured. if the current population is 27,900, what what the previous population?

The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.

Solution:

Given that current population of city is 27900.  

Also, population of a city has decreased by 38% since it was last measured.

Let assume that population of city when it was last measured = x

Decreased of 38% means x-38% of x . we can write this as,

So current population is

Equating above expression to the given value of current population, we get

x=45000

Hence previous population of city was 45000.

7,24

step-by-step explanation: