Question
Bobby had 30% as many cards as Gabriel. After Bobby and Gabriel bought another 7 cards and 6 cards respectively, Bobby had 50% less cards than Gabriel. How many cards did Gabriel have at first?
4 m

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Bobby had 30% as many cards as Gabriel. After Bobby and Gabriel bought another 7 cards and 6 cards respectively, Bobby had 50% less cards than Gabriel. How many cards did Gabriel have at first?