2. 外语
  3. At the eating contest the winner ate an average of 15 hot dogs at the first 20 sittings. After a further 20 sittings the average

At the eating contest the winner ate an average of 15 hot dogs at the first 20 sittings. After a further 20 sittings the average

admin2012-05-06  58
问题 At the eating contest the winner ate an average of 15 hot dogs at the first 20 sittings. After a further 20 sittings the average increased to 20 hot dogs. What was the average for the last 20 sittings?
选项
答案20
解析 前20轮共吃汉堡300个，40轮下来共吃汉堡800个，则后20轮吃汉堡500个，因此每轮吃25个。
转载请注明原文地址:https://kaotiyun.com/show/IyVK777K
本试题收录于： C类竞赛（非英语专业本科）题库大学生英语竞赛（NECCS）分类
0

C类竞赛（非英语专业本科）

大学生英语竞赛（NECCS）

相关试题推荐
随机试题
最新回复(0)