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2017年12月17日SAT官方每日一题---数学选择.

2017/08/04 18:47:22 编辑: 浏览次数:193 移动端

  为了让我们更好的适应sat考试,sat官网每天都会有sat官方每日一题,下面是小编为您整理的2015年12月sat官方每日一题,是数学选择,让我们一起来看一看这道数学选择吧。

  Read the following SAT test question and then click on a button to select your answer.

  A gasoline tank on a certain tractor holds 16 gallons of gasoline. If the tractor requires 7 gallons to plow 3 acres, how many acres can the tractor plow with a tankful of gasoline?

  (A) 6 and (6/7)

  (B) 7 and (1/6)

  (C) 7 and (1/3)

  (D) 10 and (2/3)

  (E) 37 and (1/3)

  答案:A

  解析:

  In the question, you are told that 7 gallons of gasoline can plow 3 acres and you are asked to find how many acres, call it x, can be plowed by 16 gallons. You can set up a ratio of the number of gallons of gasoline used to the number of acres plowed. Therore, you have 7/3 = 16/x. Cross-multiplying and solving for x gives you the answer of x = 48/7 acres, or 6 and (6/7) acres.

  上面是小编为您整理的2015年12月sat官方每日一题,是数学选择,为了让我们更好的适应sat考试,sat官网每天都会有sat官方每日一题,让我们一起来看一看这道数学选择吧。

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