求解OG 2018 DS 380题完全不理解多谢各位！

Lynn07 · 发表于 2017-10-8 10:35:09

In planning for a trip, Joan estimated both the distance
of the trip, in miles, and her average speed, in miles
per hour. She accurately divided her estimated
distance by her estimated average speed to obtain an
estimate for the time, in hours, that the trip would take.
Was her estimate within 0.5 hour of the actual time
that the trip took?
(1) Joan's estimate for the distance was within
5 miles of the actual distance.
(2) Joan’s estimate for her average speed was within
10 miles per hour of her actual average speed.

谢谢各位大牛！

honda566 · 发表于 2017-10-8 10:38:46

应该是E ? 1.告诉评估是实际距离小于5 2. 告诉平均速度和实际速度小于10. 但都没什么用

[考古] 求解OG 2018 DS 380题完全不理解多谢各位！

所属分类: GMAT考试

正在浏览此版块的会员 ()

[考古] 求解OG 2018 DS 380题 完全不理解 多谢各位！

所属分类: GMAT考试

正在浏览此版块的会员 ()

[考古] 求解OG 2018 DS 380题完全不理解多谢各位！