$120

来源: newton123 于 2017-01-04 11:28:27 [档案] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (321 bytes)

本文内容已被 [ newton123 ] 在 2017-01-04 11:41:23 编辑过。如有问题，请报告版主或论坛管理删除.

回答: 【考考大家：这是一道可以测出一个人有没有商业头脑的数学题】由 Happyyl 于 2017-01-03 16:39:43

He lost $90 in fish. It cost him $90 for one kilogram.

He lost $30 in change.

In total he lost $120.

Among his $120 loss, the buyer stole fish in $70 and in cash $30, his bad invest cost $20 (purchase cost $90 but sold at $70 for all decent deal).

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• He lost $65 in change...... -紫色海洋- ♀ (0 bytes) () 01/04/2017 postreply 12:06:08

• Right, 紫色海洋 -newton123- ♂ (812 bytes) () 01/04/2017 postreply 12:42:29

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