Question

the population of a certain village is 50000. in a year, male population was increased by 5% and female population was increased by 3%.now the population became 52020.then what was the number of female and males in previous year?

Answer 1

Let number of females=x

And number of males =50000-x

$(50000 - x) \times \frac{105}{100} + x \times \frac{103}{100} = 52020$

$105(50000 - x) + 103x = 52020 \times 100$

5250000-105x+103x=5202000

-2x=-48000

$x = \frac{48000}{2} = 24000$

Females=24000
Males=50000-24000=26000

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