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I dont understand this question

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Senior | Next Rank: 100 Posts
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by ygcrowanhand » Tue Apr 18, 2017 5:37 am
Hi GMATters,

Here's my video explanation of the question. Enjoy!

https://youtu.be/FHSyTcjZaUw

Rowan
705+ GMAT Arithmetic Shortcuts FREE 8-Video Course:

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Senior | Next Rank: 100 Posts
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by Nick0203 » Tue Jan 15, 2019 12:57 am
Since the distance is rounded to 290, its max and min value could be 295 and 285 respt.
Similarly, the max and in value of gasoline used could be 12.5 and 11.5 gallons.
So, the range of miles per gallons should be between 285/12.5 to 295/11.5.
Hence, D is the answer.
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