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Students T, S and R have some shoes, the number of T's shoes is $$\frac{1}{3}$$ of S's, and the number of R's shoes is twice as many as S's. If the number of R's shoes are less than 30. What is the possible number of R's shoes?
Indicate all such items.
Indicate all such items.
A,B,C,D显示答案
以上解析由 考满分老师提供。
