In a certain year, the population of a certain town was 9000. If in the next year the population of males increases by 4% and that of the females by 8% and the total population increases to 9600, then what was the ratio of population of males and females in that given year?  Pick one: A) 1 : 2 B) 5 : 4 C) 2 : 3 D) Data inadequate E) None of these
Let the population of males = x; then the population of females = 9000 – x   Now, 4% of x + 8% of (9000 – x)   = (9600 – 9000 ) = 600   or 0.04x + 720 – 0.08x = 600   or 720 – 600 = 0.08x – 0.04x   or, 120 = 0.04x   x = 3000   Reqd ratio of population of males and females   3000/9000−3000=3000/6000=1:2   1 : 2nswer 1 : 2
<result>A</result>
In a certain year, the population of a certain town was 9000. If in the next year the population of males increases by 4% and that of the females by 8% and the total population increases to 9600, then what was the ratio of population of males and females in that given year?