{"title":"资质","authors":"E. Loarer","doi":"10.4135/9781506307633.n57","DOIUrl":null,"url":null,"abstract":"23. In an imaginary water filtration process a fraction of 1 /n of an impurity is removed in the first pass of the water through the system. In each succeeding pass, the amount of impurity removed is 1 /n of the amount removed in the preceding pass. Show that if n = 2 the water can be made arbitrarily pure but if n = 3, at least half of the impurity will remain.","PeriodicalId":237023,"journal":{"name":"Psychologie du Travail et des Organisations : 110 notions clés","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Aptitude\",\"authors\":\"E. Loarer\",\"doi\":\"10.4135/9781506307633.n57\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"23. In an imaginary water filtration process a fraction of 1 /n of an impurity is removed in the first pass of the water through the system. In each succeeding pass, the amount of impurity removed is 1 /n of the amount removed in the preceding pass. Show that if n = 2 the water can be made arbitrarily pure but if n = 3, at least half of the impurity will remain.\",\"PeriodicalId\":237023,\"journal\":{\"name\":\"Psychologie du Travail et des Organisations : 110 notions clés\",\"volume\":\"6 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Psychologie du Travail et des Organisations : 110 notions clés\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4135/9781506307633.n57\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Psychologie du Travail et des Organisations : 110 notions clés","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4135/9781506307633.n57","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
23. In an imaginary water filtration process a fraction of 1 /n of an impurity is removed in the first pass of the water through the system. In each succeeding pass, the amount of impurity removed is 1 /n of the amount removed in the preceding pass. Show that if n = 2 the water can be made arbitrarily pure but if n = 3, at least half of the impurity will remain.