Question
Three girls, Natalie, Risa and Kathy had a total of 3060 cards. Some exchanges were made. First, Natalie gave Risa as many cards as Risa had. After that, Risa gave 14 of whatever she had then to Kathy. Finally, Kathy gave 15 of whatever she had to Natalie. As a result, they each had the same number of cards. How many cards did Natalie have at first?
5 m

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Three girls, Natalie, Risa and Kathy had a total of 3060 cards. Some exchanges were made. First, Natalie gave Risa as many cards as Risa had. After that, Risa gave 14 of whatever she had then to Kathy. Finally, Kathy gave 15 of whatever she had to Natalie. As a result, they each had the same number of cards. How many cards did Natalie have at first?