Question
Three girls, Jen, Rachel and Nora had a total of 630 coins. Some exchanges were made. First, Jen gave Rachel as many coins as Rachel had. After that, Rachel gave 14 of whatever she had then to Nora. Finally, Nora gave 13 of whatever she had to Jen. As a result, they each had the same number of coins. How many coins did Jen have at first?
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Three girls, Jen, Rachel and Nora had a total of 630 coins. Some exchanges were made. First, Jen gave Rachel as many coins as Rachel had. After that, Rachel gave 14 of whatever she had then to Nora. Finally, Nora gave 13 of whatever she had to Jen. As a result, they each had the same number of coins. How many coins did Jen have at first?