来自欧国东的问题
Acollegestudentexpectstoearnatleast$1000ininterestonaninitialinvesrmentof$20000.Ifthemoneyisinvestedforoneyearatinterestcompoundedquarterly,whatistheleastannualinterestratethatwouldachievethegoal.Answer:20000(1+
Acollegestudentexpectstoearnatleast$1000ininterestonaninitialinvesrmentof$20000.Ifthemoneyisinvestedforoneyearatinterestcompoundedquarterly,whatistheleastannualinterestratethatwouldachievethegoal.
Answer:20000(1+r/400)^4>=1.05得出r=4.91
