GIVEN: In the year 2018, The ratio of the number of males and number of females in a village was 5 : 3. In 2019, The number of males increases by 10% while the number of females decreases by 10%. FORMULA USED: X% of a number Y=
(Y×X)
100
If a number ‘Y’ is increased by X%, increased number =Y×(1+
X
100
)CALCULATION: Let number of males and females in village in 2018 were ‘5x’ and ‘3x’ respectively. ⇒ Number of males in 2019 = 110% of 5x = 5.5x ⇒ Number of females in 2019 = 90% of 3x = 2.7x ⇒ Total population in 2019 = 5.5x + 2.7x = 8.2x ∴ Required percentage increment =[