试题与答案

小华从学校步行回家要20分,骑自行车回家要10分.小华步行每分走45米,他骑自行

题型:解答题

题目:

小华从学校步行回家要20分,骑自行车回家要10分.小华步行每分走45米,他骑自行车每分行多少米?

答案:

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