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Inequalities : Advance Problem Set

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blue.vikasbhardwaj
 Post subject: Inequalities : Advance Problem Set
 Post Posted: Sun Jul 17, 2011 12:40 pm 
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Students


Posts: 3
Question # 5

A cyclist travels the length of the bike path that is 225 miles long , rounded to the nearest mile . If the trip took him 5 hours , rounded to the nearest hour , then his average speed must be ?

And as per the Book is Between 40 and 51 mph

The solution considered takes takes the Range of Distance between 224.5 and 225.5 and time between 4.5 and 5.5 , which i feel is inappropriate . 225.5 and 5.5 when rounded up gives 226 and 6 respectively . The range should be between 224.5 and 225.4 for Distance , and between 4.5 and 5.4 for time . Consequently , the range of Speed should be 41 and 51 and hence Answer E
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jnelson0612
 Post subject: Re: Inequalities : Advance Problem Set
 Post Posted: Sat Jul 30, 2011 10:42 pm 
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ManhattanGMAT Staff


Posts: 1857
Here's an identical question and answer for this problem: eiv-4th-edition-ch-12-problem-5-on-page-187-t9540.html

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Jamie Nelson
ManhattanGMAT Instructor
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