In a town, the population was 8000. In one year, male population increased by 10% and female population increased by 8% but the total population increased by 9%. The number of males in the town was :

Answer: Option A

Note :In such type of questions use allegation method to save your valuable time.

Required number of males
= $$\frac{8000}{(1+1)}$$  × 1
= 4000