At a party, the ratio of the number of men to the number of women was 20 : 1. 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 |
20 u |
1 u |
Change |
- 19.2 u |
- 0.2 u |
After |
0.8 u |
0.8 u |
Number of women that left
= 20% x 1 u
=
20100 x 1 u
= 0.2 u
Number of women that remained
= 1 u - 0.2 u
= 0.8 u
Number of men that needed to leave = 20 u - 0.8 u= 19.2 u Percentage of men that must leave = 19.220 x 100% = 96% Answer(s): 96%