The number of women in a arcade was
712 that of the men. There were 400 more men than women. After some women left the arcade, the number of men in the arcade was five times the number of the remaining women. How many women left the arcade?
|
Women |
Men |
Before |
7 u |
12 u |
Change |
- ? |
|
After |
1x3 = 3 u |
4x3 = 12 u |
The number of men remain unchanged. Make the number of men the same. LCM of 12 and 4 is 12.
Number of more men than women
= 12 u - 7 u
= 5 u
5 u = 400
1 u = 400 ÷ 5 = 80
Number of women who left the arcade
= 7 u - 3 u
= 4 u
= 4 x 80
= 320
Answer(s): 320