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Originally Posted by sperry
Yeah, but they started out with $30 total.
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Actually, Mike got it right. The mistake is in the phrasing of the question, in saying they spent nine a piece and added a $2 tip. They spent $9 a piece, period. 9x3=27. Then they kept $1 each, equalling $3. If they were to give up their $3 in change it would equal the original 30. The $2 tip is part of the $27 spent: 27-2=25.
Ah, the joys of working retail. . .
edit: already been worked out. hah. that'll teach me not to read the whole thread.