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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 ## In a certain game only one player can win and only one playe ##### This topic has 1 expert reply and 0 member replies ### Top Member ## In a certain game only one player can win and only one playe ## Timer 00:00 ## Your Answer A B C D E ## Global Stats Difficult In a certain game only one player can win and only one player always eventually wins. James, Austin, and Katelyn play this game together 3 times in a row. What is the probability that Katelyn wins at least one of the 3 games.? (1) The probability that either James or Austin wins the game is 3/4 (2) James and Katelyn have an equal probability of winning the game. OA A Source: Manhattan Prep ### GMAT/MBA Expert GMAT Instructor Joined 22 Aug 2016 Posted: 1952 messages Followed by: 30 members Upvotes: 470 Top Reply BTGmoderatorDC wrote: In a certain game only one player can win and only one player always eventually wins. James, Austin, and Katelyn play this game together 3 times in a row. What is the probability that Katelyn wins at least one of the 3 games.? (1) The probability that either James or Austin wins the game is 3/4 (2) James and Katelyn have an equal probability of winning the game. OA A Source: Manhattan Prep Probability that Katelyn wins at least one of the 3 games = 1 - (Probability that Katelyn loses all the 3 games) = 1 - (Probability that either James or Austin wins all the 3 games) Let's take each statement one by one. (1) The probability that either James or Austin wins the game is 3/4 => Probability that either James or Austin wins all the 3 games = (3/4)^3 Thus, the probability that Katelyn wins at least one of the 3 games = 1 - (3/4)^3 Sufficient. (2) James and Katelyn have an equal probability of winning the game. It does not help in getting the unique answer. Insufficient. The correct answer: A Hope this helps! -Jay _________________ Manhattan Review GMAT Prep Locations: Manhattan Review Chennai | Hyderabad | GRE Prep New Delhi | Tarnaka GRE Coaching | and many more... Schedule your free consultation with an experienced GMAT Prep Advisor! Click here. • 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 • Award-winning private GMAT tutoring Register now and save up to$200

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