Quote:
Originally Posted by stooken
closest answer.
$7 + the COST of the widget. $3 is what he's selling the widget for.
for those wondering, the vendor profited $3 from the sale of the widget. he went to the neighboring business and got exchanged a $10 bill for $10 in change. so the vendor kept $3 and gave the $7 back to the customer.
then he gave $10 to the neighboring business for that fake $10.
so $3-$10 = ($7)
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This does not make sense. He did not profit on the sale of the widget $3, it's not free. He lost a widget, $10 from his wallet and $7 he gave back to the customer. He retained $3 from the change of the fake bill. $7 cannot be the answer the way you explained it, but I'm open to a better worded response.