An amount of money was invested at 10% a year. Five times that amount : GMAT Problem Solving (PS)
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# An amount of money was invested at 10% a year. Five times that amount

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Joined: 13 Jul 2009
Posts: 145
Location: Barcelona
Schools: SSE
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An amount of money was invested at 10% a year. Five times that amount [#permalink]

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02 Sep 2009, 05:46
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100% (02:33) correct 0% (00:00) wrong based on 10 sessions

An amount of money was invested at 10% a year. Five times that amount was invested at 15%. How much was invested at 15% if the total annual return was $1,615? _________________ Performance: Gmat | Toefl Contributions: The Idioms Test | All Geometry Formulas | Friendly Error Log | GMAT Analytics MSc in Management: All you need to know | Student Lifestyle | Class Profiles Senior Manager Joined: 23 Jun 2009 Posts: 361 Location: Turkey Schools: UPenn, UMich, HKS, UCB, Chicago Followers: 5 Kudos [?]: 130 [0], given: 80 Re: An amount of money was invested at 10% a year. Five times that amount [#permalink] ### Show Tags 02 Sep 2009, 05:49 x=amount invested 10% 5x=amount invested 15% interest=x.10%+5x.15%=0,85x interest=0,85x=1.615 => x=1.900 5x=8.500 that is invested 15% Manager Joined: 10 Jul 2009 Posts: 169 Followers: 1 Kudos [?]: 82 [1] , given: 8 Re: An amount of money was invested at 10% a year. Five times that amount [#permalink] ### Show Tags 02 Sep 2009, 08:04 1 This post received KUDOS Let x and 5x be the amounts invested as 10% and 15% respectively. Annual return for x = .1x Annual return for 5x = .75x Total return = .85x = 1615 x = 1900 So amount invested for 15% = 9500. Please post OA Current Student Joined: 13 Jul 2009 Posts: 145 Location: Barcelona Schools: SSE Followers: 17 Kudos [?]: 372 [0], given: 22 Re: An amount of money was invested at 10% a year. Five times that amount [#permalink] ### Show Tags 02 Sep 2009, 10:51 Aleehsgonji wrote: Let x and 5x be the amounts invested as 10% and 15% respectively. Annual return for x = .1x Annual return for 5x = .75x Total return = .85x = 1615 x = 1900 So amount invested for 15% = 9500. Please post OA Excellent, you did it nicely maliyeci did it right too, only the 5 * 1900 was wrong. _________________ Performance: Gmat | Toefl Contributions: The Idioms Test | All Geometry Formulas | Friendly Error Log | GMAT Analytics MSc in Management: All you need to know | Student Lifestyle | Class Profiles GMAT Club Legend Joined: 09 Sep 2013 Posts: 13468 Followers: 575 Kudos [?]: 163 [0], given: 0 Re: An amount of money was invested at 10% a year. Five times that amount [#permalink] ### Show Tags 19 Feb 2015, 03:08 Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________ EMPOWERgmat Instructor Status: GMAT Assassin/Co-Founder Affiliations: EMPOWERgmat Joined: 19 Dec 2014 Posts: 8306 Location: United States (CA) GMAT 1: 800 Q51 V49 GRE 1: 340 Q170 V170 Followers: 381 Kudos [?]: 2465 [0], given: 163 Re: An amount of money was invested at 10% a year. Five times that amount [#permalink] ### Show Tags 19 Feb 2015, 13:09 Hi All, Since the posters in this thread are probably long gone (the posts are over 5 years old), the following advice isn't really for them. This type of prompt involves some standard formula use and calculations - you'll do similar work on Test Day again and again. However, since the 5 answer choices were not included, we're essentially STUCK using that approach. Based on the wording of the prompt, the answers would have been numbers, which means that we could have TESTed THE ANSWERS and quite possibly answered the question in LESS time and with LESS work. During your practice, to maximize your overall abilities, you have to be comfortable using more than one approach. Take advantage of ALL of the information that you've been given (including what's in the answer choices) and you'd be amazed how "gettable" most GMAT questions actually are. GMAT assassins aren't born, they're made, Rich _________________ # Rich Cohen Co-Founder & GMAT Assassin # Special Offer: Save$75 + GMAT Club Tests

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Re: An amount of money was invested at 10% a year. Five times that amount   [#permalink] 19 Feb 2015, 13:09
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