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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 ## Elana was working to code protocols for computer... tagged by: swerve ##### This topic has 3 expert replies and 0 member replies ### Top Member ## Elana was working to code protocols for computer... Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finishi it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was$154, what was the total amount the two were paid to the entire codeing job?

a) $252.00 b)$269.50
c) $369.00 d)$423.50
e) $693.00 The OA is E. Please, can any expert explain this PS question for me? I have many difficulties to understand why that is the correct answer. Thanks. ### GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2667 messages Followed by: 122 members Upvotes: 1153 GMAT Score: 770 swerve wrote: Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finishi it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was$154, what was the total amount the two were paid to the entire codeing job?

a) $252.00 b)$269.50
c) $369.00 d)$423.50
e) $693.00 The OA is E. Please, can any expert explain this PS question for me? I have many difficulties to understand why that is the correct answer. Thanks. If Elana completed 11/18 of the job, then Andy must have completed the other 7/18. Thus, the gap between the amount of work each performed would be 11/18 - 7/18 = 4/18. We know that Elana was paid$154 more for this this 4/18 gap, so if 'x' represents what she'd have made if she'd completed the entire project, then (4/18)x = 154;
x ='154 *18/4 = 693. The answer is E

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Save $100 off any live Veritas Prep GMAT Course Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! ### GMAT/MBA Expert Legendary Member Joined 14 Jan 2015 Posted: 2667 messages Followed by: 122 members Upvotes: 1153 GMAT Score: 770 DavidG@VeritasPrep wrote: swerve wrote: Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finishi it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was$154, what was the total amount the two were paid to the entire codeing job?

a) $252.00 b)$269.50
c) $369.00 d)$423.50
e) $693.00 The OA is E. Please, can any expert explain this PS question for me? I have many difficulties to understand why that is the correct answer. Thanks. If Elana completed 11/18 of the job, then Andy must have completed the other 7/18. Thus, the gap between the amount of work each performed would be 11/18 - 7/18 = 4/18. We know that Elana was paid$154 more for this this 4/18 gap, so if 'x' represents what she'd have made if she'd completed the entire project, then (4/18)x = 154;
x ='154 *18/4 = 693. The answer is E
Note also that once you get to this step: x ='154 *18/4 = 693, you can just estimate, as the answer choices are nicely spread out. Call it 150 * 20/4 = 150 * 5 = 750. So the answer would be a tad less than this.

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Save $100 off any live Veritas Prep GMAT Course Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! ### GMAT/MBA Expert GMAT Instructor Joined 12 Sep 2012 Posted: 2635 messages Followed by: 116 members Upvotes: 625 Target GMAT Score: V51 GMAT Score: 780 Piggybacking on David's answer, 154 * 18/4 => 154 * 4.5, so the answer has to be more than 150 * 4, or more than 600. From there it's a cinch! Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! • FREE GMAT Exam Know how you'd score today for$0

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