Three-fifths of the employees at Mac's Discount
Grocery are female and one-fourth of the
employees are under the age of 18. If one-third
of the female employees are under the age of 18,
what is the ratio of males over the age of 18 to
males under the age of 18 who work at Mac's
Discount Grocery?
A) 7:4
B) 3:1
C) 4:1
D) 7:1​

Respuesta :

Let's assume that total employees are x .

Three - fifths of x is female employees .

→ Female employees = 3x/5 .

Then male employees will be :-

→ Male employees = x - 3x/5

So male employees are 2x/5 .

→ Employees under 18 = x/4

→ Female under 18 = one - third of total female employees.

→ Female under 18 = 3x/5 (1/3)

So Female employees under 18 are x/5 .

→ Now male under 18 = x/4 - x/5

  • So male under 18 are x/20

Now male above 18 are = 2x/5- x/20

  • Male above 18 are 7x/20

Ratio of Male above 18 : Male below 18

→ 7x/20 : x/20

7 : 1

So the ratio is 7 : 1 .