Re: [計量] Pat drove from his home

看板GRE作者 (=口=)時間16年前 (2009/05/17 13:57), 編輯推噓1(1推 0噓 0→)
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※ 引述《chingyao (hello)》之銘言： : Pat drove from his home to school at 60 miles per hour. Returning over the : same route, there was a lot of traffic, and he was only able to drive at 40 : miles per hour. If the return trip took 1 hour longer, how many miles did he : drive for the round trip? : a.2 : b.3 : c.60 : d.120 : e.240 : ans.e : 為什麼? : 我想破頭 : 卡住了 : 請各位高手幫幫忙!! 距離 d miles d/60 + 1 = d/40 d = 120 來回240 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.113.242.62
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05/17 20:59, , 1F
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05/17 20:59, 1F
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文章代碼(AID): #1A3wT2x2 (GRE)