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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 ## power prep 2 and hikers ##### This topic has 1 expert reply and 7 member replies ## power prep 2 and hikers sos! Attachments This post contains an attachment. You must be logged in to download/view this file. Please login or register as a user. ### GMAT/MBA Expert GMAT Instructor Joined 08 Dec 2008 Posted: 12985 messages Followed by: 1249 members Upvotes: 5254 GMAT Score: 770 With this question, it helps to refrain from performing more calculations than are necessary. The important thing is to recognize that if someone is travelling 5 times faster than me, it will take me 5 times longer to get to the same destination as the person travelling faster. So, if it takes the cyclist 5 minutes to travel a certain distance, it will take the hiker 5 times as long to travel the same distance. So, the hiker will take 25 minutes - Answer choice D 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 01 Jun 2008 Posted: 574 messages Upvotes: 28 Hiker- 4m/h cyclist 20 m /h from the point where they meet cyclist travelled for 5 min further so in 5 min 20 --- 60 x------5 60x=100 x=10/6 miles jiker to cover the distance of 4---- 60 10/6---y 4y=100 y =25 min Vishu _________________ KILL !! DIE !! or BEAT my FEAR !!! de@D END!! Master | Next Rank: 500 Posts Joined 27 Jul 2008 Posted: 247 messages Upvotes: 2 Target GMAT Score: 720 GMAT Score: 660 thanks for the post! OA is C. I donno how it can be C... may be the power preb was mistaken.... Legendary Member Joined 01 Jun 2008 Posted: 574 messages Upvotes: 28 Forgot to consider ! the five mintues hiker covered whilst cyclist for 5 min Hiker distance after 5 minutes r = 4 miles / 1 hour -> 4 miles / 60 minutes -> 1 mile / 15 minutes t = 5 minutes d = r*t -> 1/15 * 5 = 1/3 miles Cyclist distance after 5 minutes r = 20 miles / 1 hour -> 20 miles / 60 minutes -> 1 mile / 3 minutes t = 5 minutes d = r*t -> 1/3 * 5 = 5/3 miles Distance between the two after 5 minutes 5/3 - 1/3 = 4/3 miles Time it takes Hiker to travel 4/3 miles 4/3 = 1/15 * t t = 20 minutes _________________ KILL !! DIE !! or BEAT my FEAR !!! de@D END!! Legendary Member Joined 20 Oct 2008 Posted: 2134 messages Followed by: 25 members Upvotes: 237 GMAT Score: 730 4.......> 20.......> So actually for 5 minutes the distance will be: 5(20-4) time = (5x16) / 4 time = 20 minutes _________________ LGTCH --------------------- "DON'T LET ANYONE STEAL YOUR DREAM!" Legendary Member Joined 16 Nov 2008 Posted: 546 messages Upvotes: 13 Test Date: 29th jan Target GMAT Score: 780+ GMAT Score: NA Relative speeds come into picture: V1 == Hiker V2 == Cyclist For 5 mins ( 1/12 hours) Distance between them would be 20-4/1/12 = 4/3 Now to cover 4/3 miles Hiker will take (4/3)/4 that is 1/3 hours that is 20 minutes: _________________ Admission champion, Hauz khaz 011-27565856 Junior | Next Rank: 30 Posts Joined 23 Oct 2008 Posted: 21 messages ronnie could you please post the formula for relative speed.. thank you. Master | Next Rank: 500 Posts Joined 24 Sep 2008 Posted: 279 messages Upvotes: 6 Test Date: Feb 26 Brent Hanneson wrote: With this question, it helps to refrain from performing more calculations than are necessary. The important thing is to recognize that if someone is travelling 5 times faster than me, it will take me 5 times longer to get to the same destination as the person travelling faster. So, if it takes the cyclist 5 minutes to travel a certain distance, it will take the hiker 5 times as long to travel the same distance. So, the hiker will take 25 minutes - Answer choice D Amen to that - pradeep _________________ In the land of night, the chariot of the sun is drawn by the grateful dead https://questor.blogspot.com GMATPREP1 - 550 (Oct 08) MGMAT FREE CAT - 600 (Dec 08) MGMAT CAT1 - 670 (Jan 09) MGMAT CAT2 - 550 (Jan 09) MGMAT CAT3 - 640 ( Feb 09) MGMAT CAT4 - 660 ( Feb 09) • 1 Hour Free BEAT THE GMAT EXCLUSIVE 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 • 5-Day Free Trial 5-day free, full-access trial TTP Quant Available with Beat the GMAT members only code • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for 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 • Award-winning private GMAT tutoring Register now and save up to$200

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