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Mark has the same monthly salary last year. If a certain fraction of his monthly salary was spent on investment each month, then his total annual investment last year will be six times higher than his monthly salary last year. What fraction of his monthly salary was spent on investment each month last year?
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· 相关考点
2.4.1 百分比所属关系与倍数关系的描述
2.4.1 百分比所属关系与倍数关系的描述
以上解析由 考满分老师提供。
