re: Help with riddle - How Much Money Did The Store Lose?

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Maybe I’m the jabronie here but here are the two scenarios:

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Here is another scenario:

A man steals $100 from a store. He loses that $100 bill on the sidewalk. Another guy, unaware that the $100 bill was stolen, goes to the same store and exchanges the same $100 bill for $70 in goods and $30 in change. The only difference in the sequence of events in this scenario is that the person spending the $100 bill has no knowledge it was stolen from the store. How much has the store lost?

If your answer is $100, then logically, it must also be $100 in the OP's scenario. It was the same $100 bill stolen from the store, and then used for purchases at the same store. The knowledge of the person passing the bill that it was stolen has no bearing on the store's books because it cannot be known to them. The store only sees that it lost $100.

If your answer is anything other than $100, then you are assigning some sort of exceptional value to that particular $100 bill, that anytime it might be used at that same store, in the future, it represents a loss to them. Which doesn't make sense, as the history of the bill cannot be known to them, and has no bearing on their books.