英语翻译OG PS第129题,On a recent trip,Cindy drove her car 290 mile

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英语翻译
OG PS第129题,
On a recent trip,Cindy drove her car 290 miles,rounded to the nearest 10 miles,and used 12 gallons of gasoline,rounded to the nearest gallon.The actual number of miles per gallon that Cindy's car got on this trip must have been between
答案是284/12.5 and 295/11.4

答案好像是 294/11.5 和 285/12.4
不过答案也许是对的 ,那么就看他怎么四舍五入了,按我的是我们常用的四舍五入,还有一种是四舍六入五什么的记不得了.
这段话的意思是
在最近的一次旅行中,cindy开车用了290里,这个数字是以 10里为单位四舍五入的结果,用油12gallon,这个数字是以1gallon 为单位四舍五入的结果,问你1gallon的汽油能走多长?
round to 是四舍五入的意思

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