—人上楼,边走边数台阶。从一楼走到四楼,共走了54级台阶。如果每层楼之间的台阶数相同,他一直要走到八楼,问他从一楼到八楼一共要走多少级台阶? A. 1...

作者: rantiku 人气: - 评论: 0
问题 —人上楼,边走边数台阶。从一楼走到四楼,共走了54级台阶。如果每层楼之间的台阶数相同,他一直要走到八楼,问他从一楼到八楼一共要走多少级台阶? A. 126 B. 120 C. 114 D. 108
选项
答案 A
解析 54/3=18,18×7=126。故答案为A。

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