Right, 紫色海洋

来源: newton123 于 2017-01-04 12:42:29 [档案] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (812 bytes)

回答: He lost $65 in change...... 由紫色海洋于 2017-01-04 12:06:08

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

He lost $65 in change.

In total he lost $155.

Among his $155 loss, the buyer stole fish in $35 and in cash $65, his bad invest cost $55 (purchase cost $90 but sold at $35 for all decent deal).

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