Question
Min, Marion and Yoko collected some balls. Min had twice as many balls as Marion, and Marion had 9 more balls than Yoko. If they had a total of 275 balls, how many less balls did Marion have than Min?
4 m

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Min, Marion and Yoko collected some balls. Min had twice as many balls as Marion, and Marion had 9 more balls than Yoko. If they had a total of 275 balls, how many less balls did Marion have than Min?