Question
Dana and Rachel have some coins. If Dana gives 15 coins to Rachel, Rachel will have 4 times the number of coins as Dana. If Rachel gives 15 coins to Dana, Dana will have 12 as many coins as Rachel. How many coins does Dana have at first?
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Dana and Rachel have some coins. If Dana gives 15 coins to Rachel, Rachel will have 4 times the number of coins as Dana. If Rachel gives 15 coins to Dana, Dana will have 12 as many coins as Rachel. How many coins does Dana have at first?