In a certain year, the population of a city was 18000. If in the next year, the population of males increased by 5% and that of females increased by 7%, and the total population increased to 19200, then what was the ratio of the populations of males and females in that given year?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 1 : 5.
Given:
solve this question by alligation method:
Male = 105% of 18000 = 18900
Female = 107% of 18000 = 19260
So, the ratio of the male : female = 60 : 300 = 1 : 5