There were 242 adults enrolled in the Jen Computer School in 2020. ⁵₁₁ of the adults were men. Additional adults joined the computer school in 2021. For every 5 men who joined the computer school, 4 women joined the computer school. If there was an equal number of women and men in 2021, how many women joined the school in that year?

	Men	Women
Before	110	132
Change	+ 5 u	+ 4 u
After	110 + 5 u	132 + 4 u

Fraction of adults who are women
= 1 - ⁵₁₁
= ⁶₁₁

Number of men at first
= ⁵₁₁ x 242
= 110

Number of women at first
= ⁶₁₁ x 242
= 132

Men who joined : Women who joined
5 : 4

The number of women and men in the end is the same.

110 + 5 u = 132 + 4 u
5 u - 4 u = 132 - 110

1 u = 22

Number of women who joined the school in that year
= 4 u
= 4 x 22
= 88

Answer(s): 88