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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 ## What is the x-intercept of line l? tagged by: swerve ##### This topic has 1 expert reply and 0 member replies ### Top Member ## What is the x-intercept of line l? In the figure above, the area of the triangle AOB is 30 and the y-intercept of line l is 5. What is the x-intercept of the line l? A. 25 B. 24 C. 12 D. 6 E. 0 The OA is C. 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 GMAT Instructor Joined 04 Oct 2017 Posted: 551 messages Followed by: 11 members Upvotes: 180 Hello swerve. Let's take a look at your question. The area of the triangle is $$A=\frac{AO\cdot OB}{2}.$$ By the other hand, the y-intercept of line l is 5, it implies that $$OA=5\ and\ OB=x.$$ Replacing this on the area we will get: $$A=\frac{5\cdot x}{2}=30\ \leftrightarrow\ 5x=60\ \leftrightarrow\ x=12.$$ So, the correct answer is C. I hope this explanation may help you. Feel free to ask me again if you have a doubt. Regards. _________________ GMAT Prep From The Economist We offer 70+ point score improvement money back guarantee. Our average student improves 98 points. Free 7-Day Test Prep with Economist GMAT Tutor - Receive free access to the top-rated GMAT prep course including a 1-on-1 strategy session, 2 full-length tests, and 5 ask-a-tutor messages. Get started now. • Magoosh Study with Magoosh GMAT prep 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 • 5 Day FREE Trial Study Smarter, Not Harder 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 • Free Trial & Practice Exam BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • 1 Hour Free BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • FREE GMAT Exam Know how you'd score today for$0

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