[計量] If $4500 was invested in a bond ...
If $4500 was invested in a bond fund when the price per share was $9 and
$3000 was invested in the fund when the price per share was $10, what was
the average (arithemetic mean) price per share puchased?
ans: 9.20
恩，我不太懂這種投資的問題...
(或是這根本跟投資沒關係...>"<)
拜託大家了
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※ 編輯: shugh 來自: 118.161.52.83 (10/23 10:50)
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