题目内容
(请给出正确答案)
[主观题]
The time it took car P to travel 600 miles was 2 hours less than the time it took car R to
travel the same distance. If car P's average speed was 10 miles per hour greater than that of car R, what was car R's average speed, in miles per hour?
A.40
B.50
C.60
D.70
E.80
如搜索结果不匹配,请 联系老师 获取答案