How many cards does each man have and how many cards do they trade?
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Joe deals himself and his friend John some cards from a deck of cards (not the same amount). If John gives Joe some cards Joe will have 4 times as many cards as John. If Joe gives John the same number of cards he will have 3 times as many cards as John.
How many cards does each man have and how many cards do they trade?
Joe has 31 cards, John has 9, and they trade 1 card.
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