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题目内容双击单词支持查询和收藏哦～
Sara drove from her company to her home at a constant speed of 55 kilometers per hour for two hours, and then drove another 2.2 hours at a constant speed of 65 kilometers per hour. Then how many more minutes did she need to drive from her company to her home at a constant speed of 50 kilometers per hour?
51.6 显示答案
以上解析由 考满分老师提供。
