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  # A certain car averages 25miles per gallon of gasoline when
  
  Author Message
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  Senior Manager
  Joined: 23 May 2005
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  A certain car averages 25miles per gallon of gasoline when [#permalink]  30 Nov 2006, 08:41
  A certain car averages 25miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
  
  28
  30
  33
  36
  38
  _________________
  
  Impossible is nothing
  
  Manager
  Joined: 01 Feb 2006
  Posts: 79
  Location: New York
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  Kudos [?]: 0 [0], given: 0
  
  10/25 + 50/40 galons total for 60 miles
  
  = 33/20
  
  Hence, avg mpg = 60*20/33 ~ 36
  
  Ans: 36.
  
  OA?
  Manager
  Joined: 17 Dec 2004
  Posts: 73
  Followers: 2
  
  Kudos [?]: 6 [0], given: 0
  
  I get E.
  
  A car averaging 25 mpg uses 0.4 gallons to drive 10 miles. A car averaging 40 mpg uses 1.2 gallons to drive 50 miles.
  
  Average mpg = (total miles)/(gallons of gasoline) = (60 miles)/(1.6 gallons)
  
  Dividing, we get average mpg = 37.5 ~ 38.
  
  What is OA?
  Senior Manager
  Joined: 08 Jun 2006
  Posts: 343
  Location: Washington DC
  Followers: 1
  
  Kudos [?]: 22 [0], given: 0
  
  I got 36.36363636363636.....without rounding
  Director
  Joined: 01 Oct 2006
  Posts: 500
  Followers: 1
  
  Kudos [?]: 18 [0], given: 0
  
  halahpeno wrote:
  I get E.
  
  A car averaging 25 mpg uses 0.4 gallons to drive 10 miles. A car averaging 40 mpg uses 1.2 gallons to drive 50 miles.
  
  Average mpg = (total miles)/(gallons of gasoline) = (60 miles)/(1.6 gallons)
  
  Dividing, we get average mpg = 37.5 ~ 38.
  
  What is OA?
  
  1.2 gallons for 50 miles is incorrect it must 1.25 gallons
  Manager
  Joined: 17 Dec 2004
  Posts: 73
  Followers: 2
  
  Kudos [?]: 6 [0], given: 0
  
  Um. Duh. Good call. Perhaps I shouldn't take the test on Saturday - I'm burning out!
  Similar topics Replies Last post
  Similar
  Topics:
  A certain car averages 25 miles per gallon of gasoline when 3 07 Apr 2008, 03:47
  A certain car averages 25 miles per gallon of gasoline when 4 27 Feb 2008, 09:20
  A certain car averages 25 miles per gallon of gasoline when 1 10 Nov 2006, 13:14
  A certain car averages 25 miles per gallon of gasoline when 6 06 Aug 2006, 18:46
  A certain car averages 25 miles per gallon of gasoline when 3 28 Aug 2005, 05:36
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distilabel_metadata.content: Evaluate the user given text extract and determine if it contains a math question and optionally and answer to this question.
  
  Output rules:
  
  1. Briefly describe the document and mention if it contains a question or a question and answer.
  2. Finalize the output with: Label: no-question,question,question-and-answer,multiple-question,multiple-question-and-answer
distilabel_metadata.role: system
distilabel_metadata.content: Find all School-related info fast with the new School-Specific MBA Forum
  
   It is currently 27 Mar 2015, 21:35
  
  ### GMAT Club Daily Prep
  
  #### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
  
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  # Events & Promotions
  
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  # A certain car averages 25miles per gallon of gasoline when
  
  Author Message
  TAGS:
  Senior Manager
  Joined: 23 May 2005
  Posts: 266
  Location: Sing/ HK
  Followers: 1
  
  Kudos [?]: 17 [0], given: 0
  
  A certain car averages 25miles per gallon of gasoline when [#permalink]  30 Nov 2006, 08:41
  A certain car averages 25miles per gallon of gasoline when driven in the city and 40 miles per gallon when driven on the highway. According to these rates, which of the following is closest to the number of miles per gallon that the car averages when it is driven 10 miles in the city and then 50 miles on the highway?
  
  28
  30
  33
  36
  38
  _________________
  
  Impossible is nothing
  
  Manager
  Joined: 01 Feb 2006
  Posts: 79
  Location: New York
  Followers: 1
  
  Kudos [?]: 0 [0], given: 0
  
  10/25 + 50/40 galons total for 60 miles
  
  = 33/20
  
  Hence, avg mpg = 60*20/33 ~ 36
  
  Ans: 36.
  
  OA?
  Manager
  Joined: 17 Dec 2004
  Posts: 73
  Followers: 2
  
  Kudos [?]: 6 [0], given: 0
  
  I get E.
  
  A car averaging 25 mpg uses 0.4 gallons to drive 10 miles. A car averaging 40 mpg uses 1.2 gallons to drive 50 miles.
  
  Average mpg = (total miles)/(gallons of gasoline) = (60 miles)/(1.6 gallons)
  
  Dividing, we get average mpg = 37.5 ~ 38.
  
  What is OA?
  Senior Manager
  Joined: 08 Jun 2006
  Posts: 343
  Location: Washington DC
  Followers: 1
  
  Kudos [?]: 22 [0], given: 0
  
  I got 36.36363636363636.....without rounding
  Director
  Joined: 01 Oct 2006
  Posts: 500
  Followers: 1
  
  Kudos [?]: 18 [0], given: 0
  
  halahpeno wrote:
  I get E.
  
  A car averaging 25 mpg uses 0.4 gallons to drive 10 miles. A car averaging 40 mpg uses 1.2 gallons to drive 50 miles.
  
  Average mpg = (total miles)/(gallons of gasoline) = (60 miles)/(1.6 gallons)
  
  Dividing, we get average mpg = 37.5 ~ 38.
  
  What is OA?
  
  1.2 gallons for 50 miles is incorrect it must 1.25 gallons
  Manager
  Joined: 17 Dec 2004
  Posts: 73
  Followers: 2
  
  Kudos [?]: 6 [0], given: 0
  
  Um. Duh. Good call. Perhaps I shouldn't take the test on Saturday - I'm burning out!
  Similar topics Replies Last post
  Similar
  Topics:
  A certain car averages 25 miles per gallon of gasoline when 3 07 Apr 2008, 03:47
  A certain car averages 25 miles per gallon of gasoline when 4 27 Feb 2008, 09:20
  A certain car averages 25 miles per gallon of gasoline when 1 10 Nov 2006, 13:14
  A certain car averages 25 miles per gallon of gasoline when 6 06 Aug 2006, 18:46
  A certain car averages 25 miles per gallon of gasoline when 3 28 Aug 2005, 05:36
  Display posts from previous: Sort by
distilabel_metadata.role: user
distilabel_metadata.raw_output_q_a_detector_0: Similar topics Replies Last post
  A certain car averages 25 miles per gallon of gasoline when 3 07 Apr 2008, 03:47
  A certain car averages 25 miles per gallon of gasoline when 4 27 Feb 2008, 09:20
  A certain car averages 25 miles per gallon of gasoline when 1 07 Oct 2006, 21:25
  A certain car averages 25 miles per gallon of gasoline when 6 06 Aug 2006, 18:46
  A certain car averages 25 miles per gallon when driving in 3 07 Apr 2006, 14:00
  Display posts from previous: Sort by
  
  # A certain car averages 25miles per gallon of gasoline when
  
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