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Mathematics, 08.04.2020 23:59 aaroneduke558

Kenny had 5/7 more trading cards than Lee. After Kenny collected 50% more trading cards, he had 220 more trading cards than Lee. How many trading cards did Lee have? (answer is 140... Why?)

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Kenny had 5/7 more trading cards than Lee. After Kenny collected 50% more trading cards, he had 220...
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