Question
Three girls, Olivia, Julie and Yoko had a total of 3720 stamps. Some exchanges were made. First, Olivia gave Julie as many stamps as Julie had. After that, Julie gave 13 of whatever she had then to Yoko. Finally, Yoko gave 15 of whatever she had to Olivia. As a result, they each had the same number of stamps. How many stamps did Olivia have at first?
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Three girls, Olivia, Julie and Yoko had a total of 3720 stamps. Some exchanges were made. First, Olivia gave Julie as many stamps as Julie had. After that, Julie gave 13 of whatever she had then to Yoko. Finally, Yoko gave 15 of whatever she had to Olivia. As a result, they each had the same number of stamps. How many stamps did Olivia have at first?