最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
If a kid sits an exam for 10 times (the full score of the exam is 100), but only gets an average score of 75, then how many more times does he need to sit the exam and get a score of 100 each time, such that his average score will reach 90?
15 显示答案
以上解析由 考满分老师提供。
