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When Mark carries a speed tester for feet, he moves 93 feet per minute; when Mark carries a speed tester for hands, he moves 90 feet per minute. In how many seconds will he moves on feet 0.25 feet more than he moves on hands?
_____seconds
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· 相关考点
2.5.3 时速与距离问题
2.5.3 时速与距离问题
以上解析由 考满分老师提供。
