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_左边 · 2020年01月12日

问一道题：NO.PZ2018091706000063 [ CFA II ]

  1. CFA II
  2. Economics Analysis

问题如下图：

选项：

A.

B.

C.

解释：

 

还是不懂为什么不能用（DRN/USD）除以（EUR/USD）？前面一道题不就是用的除法吗？为什么这里要用倒数算。除法和倒数算出来的数是不一样的。请老师详细解答，谢谢！

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1 个答案

源_品职助教 · 2020年01月15日

嗨，努力学习的PZer你好：


可以用（DRN/USD）除以（EUR/USD），

因为 （DRN/USD）除以（EUR/USD）就等于解析中的（DRN/USD）乘以（USD/EUR）,最后表达形式都是DRN/EUR

但是如果是除法，要选对买价和卖价，因为除以EUR/USD的买价其实就等于乘以USD/EUR的卖价，如果你买价卖价选错，计算结果也就不对了。

不客气~

 


-------------------------------
虽然现在很辛苦，但努力过的感觉真的很好，加油！


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