數學題~急要 XDXD

2008-04-01 11:27 pm
梁先生一年前將部份的退休金交給一位理財顧問作投資,
該顧問建議將資金作分散投資,除保留部份現金外,其餘
投放在股票、定息債券、貴金屬及外幣存款。
以下是顯示投資組合相關的百分比:

1.現金X%
2.外幣存款23.5%
3.貴金屬16.0%
4.股票29.0%
5.定息債券12.5%

A)若梁先生保留的現金為228000元,試計算投資總額(包括現金部份)
及組合內其餘各部份的投資金額;
B)梁先生目前保留的現金減少至186000元,而投資組合
內其餘各部份均有變化,分別在股票部份增加54%、在定息債券部份增加8%、
在貴金屬部份減少9%及在外幣存款部份增加6%、試計算:
I)目前投資組合內各部份的金額及整項投資總金額。
II)整項投資總金額變化的百分比:

C)梁先生相信在未來數個月股票走勢會出現突破,決定重整投資組合。
除計畫額外增加資金420000元,按3:2:1的比重分別投放在股票、定息債券
及外幣存款上,並取消投資在貴金屬的部份,而蛋相蛋的金額的轉投在股票上。

I)計算重整後,投資組合內各部份的金額(包括現金、股票、
定息債券及外幣存款)及整項投資總金額;
II)利用圓形圖顯示重整後的投資組合,並列出計算步驟。

投資組合 角度

1.現金
2.股票
3.定息債券
4.外幣
5.總額

回答 (2)

2008-04-02 4:50 am
✔ 最佳答案

http://spreadsheets.google.com/pub?key=pBRrRvfWP7LjS_7olarKOIw&gid=3 (工作表4)




A)
現金所佔百分比 = 100% - 23.5% - 16% - 29% -12.5% = 19%
投資總額 = $228,000 x 100% / 19% = $1,200,000
外幣存款 = $228,000 x 23.5% / 19% = $282,000
貴金屬 = $228,000 x 16% / 19% = $192,000
股票 = $228,000 x 29% / 19% = $348,000
定息債券 = $228,000 x 12.5% / 19% = $150,000




B)
I)
外幣存款 = $282,000 x (1 + 6%) = $298,920
貴金屬 = $192,000 x (1 - 9%) = $174,720
股票 = $348,000 x (1 + 54%) = $535,920
定息債券 = $150,000 x (1 + 8%) = $162,000
投資總額 = $186,000 + $298,920 + $174,720 + $535,920 + $162,000 = $1,357,560
II)
投資總金額變化的百分比 = ($1,357,560 - $1,200,000) / $1,200,000 = +13.13%




C)
I)
現金 = $186,000 = $186,000
外幣存款 = $298,920 + $420,000 x 1 / (1+2+3) = $368,920
貴金屬 = $174,720 - $174,720 = $0
股票 = $535,920 + $420,000 x 3 / (1+2+3) + $174,720 = $920,640
定息債券 = $162,000 + $420,000 x 2 / (1+2+3) = $302,000
投資總額 = $1,357,560 + $420,000 = $1,777,560

II)


圓形圖:http://spreadsheets.google.com/pub?key=pBRrRvfWP7LjS_7olarKOIw&oid=1&output=image

現金 = $186,000 / $1,777,560 = 10.46%
外幣存款 = $368,920 / $1,777,560 = 20.75%
貴金屬 = $0 / $1,777,560 = 0%
股票 = $920,640 / $1,777,560 = 51.79%
定息債券 = $302,000 / $1,777,560 = 16.99%



2008-04-01 20:55:29 補充:
按以上兩個連結會「找不到網頁」,自行把網址剪貼到網址開啟則能開啟得到。
2008-04-01 11:54 pm
A)
現金X% + 外幣存款23.5% + 貴金屬16.0% + 股票29.0% + 定息債券12.5% = 100%
X% = 19%
投資總額(包括現金部份)
= 228000元/19%
= 1200000元
1.現金X% = 228000元
2.外幣存款23.5% = 1200000元x23.5% = 282000元
3.貴金屬16.0% = 1200000元x16.0% = 192000元
4.股票29.0% = 1200000元x29.0% = 348000元
5.定息債券12.5% = 1200000元x12.5% = 150000元
B)
1.現金Y%
2.外幣存款23.5%x106% = 24.91%
3.貴金屬16.0%x91% =14.56%
4.股票29.0%x154% = 44.66%
5.定息債券12.5%x108% = 13.5%
現金Y% + 外幣存款24.91% + 貴金屬14.56% + 股票44.66% + 定息債券13.5% = 100%
Y% = 2.37%
投資總額(包括現金部份)
= 186000元/2.37%
= 7848101.2元
1.現金Y% = 186000元
2.外幣存款24.91% = 7848101.2元x24.91% = 1954962元
3.貴金屬14.56% = 7848101.2元x14.56% = 1142683.5元
4.股票44.66% = 7848101.2元x44.66% = 3504961.9元
5.定息債券13.5% = 7848101.2元x13.5% = 1059493.6元
整項投資總金額變化的百分比
= (7848101.2元 - 1200000元)/1200000元 x 100%
= 554%

C) What is 蛋相蛋的金額?


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