Question
Lee bought 2 boxes of yellow cards and 2 packets of silver cards. There were 20 yellow cards more than silver cards. He had 40 cards altogether. How many yellow cards were there in each box?
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Lee bought 2 boxes of yellow cards and 2 packets of silver cards. There were 20 yellow cards more than silver cards. He had 40 cards altogether. How many yellow cards were there in each box?