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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 ## $\frac{19^2+19}{20}=$ tagged by: VJesus12 ##### This topic has 2 expert replies and 1 member reply ### Top Member ## $\frac{19^2+19}{20}=$ ## Timer 00:00 ## Your Answer A B C D E ## Global Stats Difficult $$\frac{19^2+19}{20}=$$ A. 19/10 B. 57/20 C. 19 D. 38 E. 361 The OA is the option C. What is the fastest way to solve this PD question? May someone clarifies this to me? Thanks. ### GMAT/MBA Expert GMAT Instructor Joined 08 Dec 2008 Posted: 12991 messages Followed by: 1249 members Upvotes: 5254 GMAT Score: 770 Top Reply VJesus12 wrote: $$\frac{19^2+19}{20}=$$ A. 19/10 B. 57/20 C. 19 D. 38 E. 361 Notice that we can factor 19 from the numerator. (19Â² + 19)/20 = (19)(19 + 1)/20 = (19)(20)/20 = 19 Answer: C Cheers, Brent _________________ Brent Hanneson â€“ Creator of GMATPrepNow.com Use my video course along with Sign up for free Question of the Day emails And check out all of these free resources GMAT Prep Now's comprehensive video course can be used in conjunction with Beat The GMATâ€™s FREE 60-Day Study Guide and reach your target score in 2 months! Legendary Member Joined 07 Sep 2017 Posted: 831 messages Followed by: 3 members Upvotes: 6 VJesus12 wrote: $$\frac{19^2+19}{20}=$$ A. 19/10 B. 57/20 C. 19 D. 38 E. 361 The OA is the option C. What is the fastest way to solve this PD question? May someone clarifies this to me? Thanks. Hello Vjesus12. Here the best way is taking 19 as a common factor as follows: $$\frac{19^2+19}{20}=\frac{19\left(19+1\right)}{20}=\frac{19\cdot20}{20}=19.$$ This way, we get the answer straightforward. Hence, the correct answer is the option C. I hope this explanation may help you. ### GMAT/MBA Expert GMAT Instructor Joined 25 Apr 2015 Posted: 2811 messages Followed by: 18 members Upvotes: 43 VJesus12 wrote: $$\frac{19^2+19}{20}=$$ A. 19/10 B. 57/20 C. 19 D. 38 E. 361 The two terms in the numerator have a common factor of 19. Factoring it and simplifying, we have: 19(19 + 1)/20 = 19(20)/20 = 19 Answer: C _________________ Scott Woodbury-Stewart Founder and CEO scott@targettestprep.com See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews • FREE GMAT Exam Know how you'd score today for$0

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