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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 ## Stock - Number of shares V ------------------- 68 W ------- ##### This topic has 3 expert replies and 0 member replies ### Top Member ## Stock - Number of shares V ------------------- 68 W ------- ## Timer 00:00 ## Your Answer A B C D E ## Global Stats Difficult Stock - Number of shares V ------------------- 68 W ----------------- 112 X ------------------- 56 Y ------------------- 94 Z ------------------- 45 The table shows the number of shares of each of the 5 stocks owned by Mr Sami. If Mr Sami was to sell 20 shares of Stock X and buy 24 shares of stock Y, what would be the increase in the range of the numbers of shares of the 5 stocks owned by Mr. Sami? A 4 B. 6 C. 9 D. 15 E. 20 OA D Source: GMAT Prep ### GMAT/MBA Expert GMAT Instructor Joined 25 May 2010 Posted: 15103 messages Followed by: 1859 members Upvotes: 13060 GMAT Score: 790 BTGmoderatorDC wrote: Stock - Number of shares V ------------------- 68 W ----------------- 112 X ------------------- 56 Y ------------------- 94 Z ------------------- 45 The table shows the number of shares of each of the 5 stocks owned by Mr Sami. If Mr Sami was to sell 20 shares of Stock X and buy 24 shares of stock Y, what would be the increase in the range of the numbers of shares of the 5 stocks owned by Mr. Sami? A 4 B. 6 C. 9 D. 15 E. 20 Original range = (greatest number of shares) - (smallest number of shares) = 112-45 = 67. After 24 shares of Y are purchased, new Y = 94+24 = 118. After 20 shares of X are sold, new X = 56-20 = 36. New range = (new greatest number of shares) - (new smallest number of shares) = 118-36 = 82. Increase in the range = (new range) - (original range) = 82-67 = 15. The correct answer is D. Faster approach: The greatest value changes from 112 to 118, increasing the range by 6. The smallest value changes from 45 to 36, increasing the range by 9. Total increase in the range = 6+9 = 15. _________________ Mitch Hunt Private Tutor for the GMAT and GRE GMATGuruNY@gmail.com If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon. Available for tutoring in NYC and long-distance. For more information, please email me at GMATGuruNY@gmail.com. Student Review #1 Student Review #2 Student Review #3 Free GMAT Practice Test How can you improve your test score if you don't know your baseline score? Take a free online practice exam. Get started on achieving your dream score today! Sign up now. ### GMAT/MBA Expert Elite Legendary Member Joined 23 Jun 2013 Posted: 10071 messages Followed by: 494 members Upvotes: 2867 GMAT Score: 800 Hi All, "Range" questions come from the broader category of statistics, which will show up a couple of times on the GMAT. The range of a group of numbers is the difference between the largest number and the smallest number. Based on the original number of shares, the range would be: 112 - 45 = 67 However, the prompt tells us that two of the values in the table are going to change. After the changes, the values will be: V 68 W 112 X 36 Y 118 Z 45 Now the range is 118 - 36 = 82 The INCREASE in the range requires us to compare the "new" range to the "old" range: 82 - 67 = 15 Final Answer: D GMAT assassins aren't born, they're made, Rich _________________ Contact Rich at Rich.C@empowergmat.com ### GMAT/MBA Expert GMAT Instructor Joined 25 Apr 2015 Posted: 2012 messages Followed by: 14 members Upvotes: 43 BTGmoderatorDC wrote: Stock - Number of shares V ------------------- 68 W ----------------- 112 X ------------------- 56 Y ------------------- 94 Z ------------------- 45 The table shows the number of shares of each of the 5 stocks owned by Mr Sami. If Mr Sami was to sell 20 shares of Stock X and buy 24 shares of stock Y, what would be the increase in the range of the numbers of shares of the 5 stocks owned by Mr. Sami? A 4 B. 6 C. 9 D. 15 E. 20 We recall that the formula for range is: Range = greatest value - least value Since the greatest number of shares is 112 and the least number of shares is 45, before selling stock X and buying stock Y, the current range is 112 - 45 = 67. After 20 shares of stock X are sold and 24 shares of stock Y are purchased, the greatest number of shares is 94 + 24 = 118 and the least number of shares is 56 - 20 = 36. The new range would be118 - 36 = 82. Thus, the increase in the range is 82 - 67 = 15 shares. Answer: D _________________ Scott Woodbury-Stewart Founder and CEO • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE Available with Beat the GMAT members only code • 1 Hour Free BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code • Free Trial & Practice Exam BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • 5-Day Free Trial 5-day free, full-access trial TTP Quant Available with Beat the GMAT members only code • Free Veritas GMAT Class Experience Lesson 1 Live Free Available with Beat the GMAT members only code • 5 Day FREE Trial Study Smarter, Not Harder Available with Beat the GMAT members only code • Free Practice Test & Review How would you score if you took the GMAT Available with Beat the GMAT members only code • FREE GMAT Exam Know how you'd score today for$0

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