[計量] 問一題數學

看板GRE作者 (leporidae)時間11年前 (2013/02/11 19:53), 編輯推噓2(203)
留言5則, 2人參與, 最新討論串17/17 (看更多)
來欣題庫Q4一題一直無法參透>"< 請板上高手幫忙解答了 謝謝!!! A certain money market account that had a balance of $48000 during all of last month earned $360 in interest for the month. At what simple annual interest rate did the account earn interest last month? 答案是 9% 但是我一直算不出來... -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.136.229.69

02/11 20:22, , 1F
他說他有48000元,然後上個月他的利息算出來是360
02/11 20:22, 1F

02/11 20:22, , 2F
他要問你他的年利率,所以你把360*12個月=4320元
02/11 20:22, 2F

02/11 20:23, , 3F
4320/本金48000=0.09 就是他的年利率了
02/11 20:23, 3F

02/11 20:51, , 4F
瞭解了!! 感謝樓上詳細解說^^
02/11 20:51, 4F

02/11 22:23, , 5F
不客氣~
02/11 22:23, 5F
文章代碼(AID): #1H6Dl3Q6 (GRE)
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文章代碼(AID): #1H6Dl3Q6 (GRE)