Answer: The total population in the city = 30,000.
Step-by-step explanation:
Given: There are 18 % of the people are voters.
The number of voters =5400
Let 'x' be the total population in that city.
Then, according to the question
[tex]18\%\ of\ x=5400\\\Rightarrow0.18\times x=5400\\\Rightarrow\ x=\frac{5400}{0.18}\\\Rightarrow\ x=30,000[/tex]
Hence, the total population in that city = 30,000.