Question
Gillian, Kimberly and Betty had a collection of cards. 13 of Gillian's cards is equal to 23 of Kimberly's cards. Kimberly had 9 cards fewer than Betty. If they had 81 cards altogether, how many cards did Gillian have?
4 m

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Gillian, Kimberly and Betty had a collection of cards. 13 of Gillian's cards is equal to 23 of Kimberly's cards. Kimberly had 9 cards fewer than Betty. If they had 81 cards altogether, how many cards did Gillian have?