Question

In a city7/20 of the population are woman and 1/4 are children. Find the fraction of the population of men

Answer 1

Answer:

2/5

Step-by-step explanation:

women=7/20

children=1/4×5/5=5/20

men=1-(7/20+5/20)

=1-12/20

=2/5

Answer 2

⠀⠀⠀ ☛...Given...☚⠀ ⠀⠀ ⠀

✰✰⠀The population of women = $\dfrac{7}{20}$

✰✰⠀The population of children = $\dfrac{1}{4}$

⠀⠀ ⠀☛...To find...☚⠀

⠀⠀⠀

✰✰ The fraction of the men's population...

⠀⠀ ⠀☛...Solution...☚⠀ ⠀

We know that...

In fraction...

The population of women + The population of children + The population of men = 1

∴ The population of men = 1 - (The population are women + The population are children)

⠀⠀⠀⠀ ---☛⠀1 - ( 7/20 + 1/4 )

⠀ ⠀⠀⠀---☛ 20 - ( 7 + 5 ) / 20

⠀ ⠀ ⠀---☛⠀20 - 12 / 20

⠀⠀⠀⠀ ---☛ 8 / 20

⠀⠀ ⠀ ⠀---☛⠀$\dfrac{2}{5}$

Therefore, the fraction of men's population is 2/5...⠀ ⠀ ⠀⠀ ⠀⠀⠀