Question
Sabrina has thrice the number of stamps as Wendy. Esther has four times the number of stamps as Sabrina. If Esther has 780 stamps, how many stamps do the three girls have altogether?
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Sabrina has thrice the number of stamps as Wendy. Esther has four times the number of stamps as Sabrina. If Esther has 780 stamps, how many stamps do the three girls have altogether?