[計量] P1~DS

看板GMAT (GMAT入學考試)作者 (Bobshih)時間16年前 (2009/09/05 03:32), 編輯推噓0(001)
留言1則, 1人參與, 最新討論串1/2 (看更多)
How many hours did it take Helen to drive from her house to her parents' house? (1) Helen's average speed on this trip was 72 kilometers per hour. (2) If Helen's average speed on this trip had been 8 kilometers per hour greater, it would have taken her 1 hour less. 答案是C 請問如何列式?1+2 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.129.146.72

09/05 03:39, , 1F
我算到D=-720 雖然時間還是算得出箂 但是總是怪怪的
09/05 03:39, 1F
文章代碼(AID): #1AeMjWN7 (GMAT)
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