Question

The population of a town was 8,000. In one year, the female population increased by 8% and the male population increased by 10%, but the total increased by only 9%. What is the number of males in the town now?

Answer 1

Answer:

4000

Step-by-step explanation:

Let number of females  = x

number of males = 8000 - x

After 1 year,

(8000-x)110/100 + x*108/100 = 8000*109/100

8000*110 - 110x + 108x = 8000*109

8000(110-109) = 2x

x = 4000

Number of females = 4000

Number of males = 8000 - 4000 = 4000.