There were 147 adults enrolled in the Xylia Swimming School in 2018.
37 of the adults were men. Additional adults joined the swimming school in 2019. For every 3 men who joined the swimming school, 2 women joined the swimming school. If there was an equal number of women and men in 2019, how many women joined the school in that year?
|
Men |
Women |
Before |
63 |
84 |
Change |
+ 3 u |
+ 2 u |
After |
63 + 3 u |
84 + 2 u |
Fraction of adults who are women
= 1 -
37 =
47 Number of men at first
=
37 x 147
= 63
Number of women at first
=
47 x 147
= 84
Men who joined : Women who joined
3 : 2
The number of women and men in the end is the same.
63 + 3 u = 84 + 2 u
3 u - 2 u = 84 - 63
1 u = 21
Number of women who joined the school in that year
= 2 u
= 2 x 21
= 42
Answer(s): 42