Question
Three girls, Diana, Roshel and Wendy had a total of 4140 stamps. Some exchanges were made. First, Diana gave Roshel as many stamps as Roshel had. After that, Roshel gave 14 of whatever she had then to Wendy. Finally, Wendy gave 15 of whatever she had to Diana. As a result, they each had the same number of stamps. How many stamps did Diana have at first?
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Three girls, Diana, Roshel and Wendy had a total of 4140 stamps. Some exchanges were made. First, Diana gave Roshel as many stamps as Roshel had. After that, Roshel gave 14 of whatever she had then to Wendy. Finally, Wendy gave 15 of whatever she had to Diana. As a result, they each had the same number of stamps. How many stamps did Diana have at first?