仁傑
壇主
UID 1
積分 27235
經驗 12114
YK幣 32569
帖子 7216
精華
7
註冊 2006-11-11
用戶註冊天數 6389
用戶失蹤天數 41 來自 香港
性別 男生
狀態 離線
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6a. 設年利率為 y
$1600 (1+ y/2)^2 = $1600 + $81
y = [√(1681/1600) - 1] x 2
y = 0.025 x 2
y = 5%
6b. 利息 = $1600 (1+ 5%/2)^4 - $1600
大約= $166
7. 還款1次後 = $20000 (1+2%) - $5000 = $15400
．．2．． = $15400 (1+2%) - $5000 = $10708
．．3．． = $10708 (1+2%) - $5000 ~ $5922
．．4．． = $5922 (1+2%) - $5000 ~ $1040
9a. 本利和 = $50000(1+3%)^2 = $53045
9b. 4年 = $53045(1+4%)^6 = $67119
9c. 總利息 = $67119 - $50000 = $17119
請看：
http://forum.eyankit.com/viewthr ... &extra=page%3D1
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