Directions: Study the following information carefully and answer the q...
From common explanation, we have
Population of the city in 2019 = 25,000
Male population in 2018 and 2020 combined = 20,000 + 10,000 = 30,000
Reqd. difference = 30,000 – 25,000 = 5,000
Hence, Option A is correct.
Common explanation:
The population of the city in 2018 was 37,500 which was 50% more than the population in 2019.
Population in 2019
In 2019, the ratio of the number of males to females in a city was 3 : 2.
The number of males in 2019
The number of females in 2019
The population of males in 2021 was 1000 less than that in 2019.
Males in 2021 = 15,000 – 1,000 = 14,000
The population of females decreased by 20% from 2019 to 2021.
Females in 2021
The average number of females in 2020 and 2021 was 9000.
Females in 2020 = 9,000 × 2 – 8,000 = 10,000
In 2020, the population of the city decreased by 20% over the previous year.
Population in 2020
The ratio of the number of males in 2018 to that in 2020 was 2 : 1.
Males in 2018
Females in 2018 = 37,500 – 20,000 = 17,500