填空题The ratio of men to women in a room is 4: 5. If the room contains three more women than men, how many women are in the room?____

填空题
The ratio of men to women in a room is 4: 5. If the room contains three more women than men, how many women are in the room?____

参考解析

解析:
根据题干可假设,屋子里的男人有4x,女人有5x,又因为男人比女人多3,所以5x=4x+3,所以x = 3。所以屋子里有女人5(3)= 15人。

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