Question
Nicole collected twice as many stamps as Shiyun. Shiyun collected thrice as many stamps as Yoko. What is the ratio of the number of stamps collected by Yoko to the number of stamps collected by Nicole?
2 m

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Nicole collected twice as many stamps as Shiyun. Shiyun collected thrice as many stamps as Yoko. What is the ratio of the number of stamps collected by Yoko to the number of stamps collected by Nicole?