At a conference, the ratio of the number of men to the number of women was 4 : 3. If 20% of the women left, what percentage of the men must leave so that there will be an equal number of men and women remaining?
|
Men |
Women |
Before |
4 u |
3 u |
Change |
- 1.6 u |
- 0.6 u |
After |
2.4 u |
2.4 u |
Number of women that left
= 20% x 3 u
=
20100 x 3 u
= 0.6 u
Number of women that remained
= 3 u - 0.6 u
= 2.4 u
Number of men that needed to leave = 4 u - 2.4 u= 1.6 u Percentage of men that must leave = 1.64 x 100% = 40% Answer(s): 40%