A Simple Maths Question
一天有个年轻人来到王老板的店里买了一件礼物,这件礼物成本是18元,标价是21元。
结果是这个年轻人掏出100元要买这件礼物,王老板当时没有零钱,用那100元向街坊换了100元的零钱,找给年轻人79元.
但是街坊后来发现那100元是假钞,王老板无奈还了街坊100元.
现在问题是:
王老板在这次交易中到底损失了多少钱??
99 out of 100 university student got this question wrong.
posted by Jason @ 5:08 PM
2 Comments:
Ans is $97
Just think like this..
If the $100 note is real.. He would have gain $21 but end up it's not.. so he have to fork out another $79
So it's -$79 then he need to factor in the cost price which is -$18 so total $97
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