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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## It costs g cents per mile for gasoline and m cents tagged by: VJesus12 ##### This topic has 2 expert replies and 2 member replies ## It costs g cents per mile for gasoline and m cents ## Timer 00:00 ## Your Answer A B C D E ## Global Stats Difficult It costs g cents per mile for gasoline and m cents per mile for all other costs to run a car. How many dollars will it cost to run a car 200 miles? A. 200m/g B. 200gm/(g + m) C. 200gm D. 200(g + m) E. 2(g +m) The OA is the option E. Why is E? the correct choice should be D. I am confused. Legendary Member Joined 07 Sep 2017 Posted: 808 messages Followed by: 3 members Upvotes: 6 Top Reply Hello Vjesus12. Let's take a look at your question. We know the following information: (i) It costs g cents per mile for gasoline (ii) it costs m cents per mile for all other costs to run a car And we want to know how many dollars will it cost to run a car 200 miles? Since the trip was 200 miles long, then the costs are $$200\cdot g\ \ \ \ and\ \ \ \ \ \ 200\cdot m$$ So, the total cost is $$C=200\cdot g+200\cdot m$$ Now $$C=200\cdot\left(g+m\right)\ \ \ cents$$ Now, the question asks for how many dollars, and since 200 cents = 2 dollars we get that the total cost is 2(g+m). This is why the correct answer is the option E. I hope it helps you. Senior | Next Rank: 100 Posts Joined 02 Jul 2018 Posted: 32 messages Followed by: 1 members ### GMAT/MBA Expert GMAT Instructor Joined 25 Apr 2015 Posted: 2244 messages Followed by: 17 members Upvotes: 43 VJesus12 wrote: It costs g cents per mile for gasoline and m cents per mile for all other costs to run a car. How many dollars will it cost to run a car 200 miles? A. 200m/g B. 200gm/(g + m) C. 200gm D. 200(g + m) E. 2(g +m) The cost in cents to run a car 200 miles is 200g + 200m, so in dollars that is: (200g + 200m)/100 = 200(g + m)/100 = 2(g + m) Answer: E _________________ Scott Woodbury-Stewart Founder and CEO ### GMAT/MBA Expert Elite Legendary Member Joined 23 Jun 2013 Posted: 10109 messages Followed by: 494 members Upvotes: 2867 GMAT Score: 800 Hi VJesus12, We're told that it costs G CENTS per mile for gasoline and M CENTS per mile for all other costs to run a car. We're asked for the number of DOLLARS it will cost to run a car 200 miles. This question can be solved in a couple of different ways, including by TESTing VALUES. IF.... G=2 and M=3 The the cost to run a car for 200 miles would be (2)(200) + (3)(200) = 400 + 600 = 1,000 cents =$10.00

Thus, we're looking for an answer that equals 10 when G=2 and M=3. There's only one answer that matches...

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