Question
Gillian had twice as many buttons as Cindy. After Cindy bought another 80 buttons, Cindy had 3 times as many buttons as Gillian. How many buttons did Gillian have?
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Gillian had twice as many buttons as Cindy. After Cindy bought another 80 buttons, Cindy had 3 times as many buttons as Gillian. How many buttons did Gillian have?