Eva walks 15 m per minute and Howard walks 20 per minute. If Eva is 70 m
ahead of Howard , how long will Howard overtake Eva?
Please help me!!!15 points !!!!
Eva walks15mperminute..15point
2014-01-28 7:19 am
回答 (2)
2014-01-28 7:52 am
✔ 最佳答案
每分鐘Howard都能追上(20-15)m所以要追上70m就需時:
70 / (20 - 15)
= 14 min
希望可以幫到你 :)
2014-01-28 8:23 am
70/ (20-15) =14, 但问题说超越（overtake），所以是需要多于14min，eg。14min1s
收錄日期: 2021-04-13 19:57:58
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https://hk.answers.yahoo.com/question/index?qid=20140127000051KK00208