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～
Jan and Marko are competing in an off-road race. Jan completes $$\frac{3}{4}$$ of the race in 2 hours. Marko completes $$\frac{2}{3}$$ of the race in $$\frac{5}{8}$$ of the time it takes Jan to complete $$\frac{9}{10}$$] of the race.
Quantity A
Jan's rate
Quantity B
Marko's rate
B显示答案
以上解析由 考满分老师提供。
