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# 50 tricky questions

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Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 7934
Location: Pune, India

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02 Aug 2011, 21:23
mrblack wrote:
How are you supposed to actually learn how to solve these questions? I could spend an hour trying to solve some of the questions and even that I will probably still be stumped....is there a good way to learn the tricks to solve these toughies?

These questions are for practice. You don't have to 'learn' the method for each one. First figure out if you are ready for them i.e. can you solve the easier questions comfortably? Are your basics in place? Let's say, can you solve most OG12 questions in less than a minute? Once you know that you have tamed the easy ones, then go for the difficult ones.
You just have to try and solve them and if you are unable to, then check out the explanations. If you have doubts in a question, post it and people will give their take on it. With every new question, you will learn something new. You will get different ways of figuring out the answer since most people have their favored mechanisms. Finally most questions in GMAT are based on a handful of basics. Once you have seen 20 different applications of the same concept, it doesn't matter how the concept is presented to you. You will know how to deal with it.
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Karishma
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Manager
Joined: 27 Apr 2008
Posts: 191

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03 Aug 2011, 04:32
Thank you Karishma. Very encouraging advice indeed!
Manager
Joined: 26 Sep 2010
Posts: 107
GMAT 1: 680 Q49 V34
GPA: 3.65

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07 Aug 2011, 03:15
thanks for sharing
Status: How can I crack Verbal
Joined: 12 May 2011
Posts: 205
Location: India
Concentration: General Management, Finance
GMAT 1: 700 Q51 V32
GPA: 3

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11 Aug 2011, 05:21
to those people who have seen/worked on these questions..can you please share the source of these questions?are they GMATlike? are they worth the time spent in solving these problems?
Manager
Joined: 24 Jul 2009
Posts: 72
Location: United States
GMAT 1: 590 Q48 V24

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16 Aug 2011, 22:48
LifeChanger wrote:
to those people who have seen/worked on these questions..can you please share the source of these questions?are they GMATlike? are they worth the time spent in solving these problems?

It depends on 2 factors:
2. time left for actual GMAT exam: you have ample time, u can go ahead and solve these, else just concentrate on individual questions being posted in the forum.
Manager
Joined: 31 Jul 2011
Posts: 62

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30 Sep 2011, 13:24
Just started looking and first one is wrong!
Intern
Joined: 27 Mar 2011
Posts: 4

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06 Oct 2011, 03:47
Thank you for yoursharing.
Manager
Joined: 28 Sep 2011
Posts: 200

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11 Oct 2011, 18:00
Wow, a great addition to my resources. Thank you for sharing this with the entire community.
Intern
Joined: 27 Sep 2011
Posts: 2

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13 Oct 2011, 17:44
Have anyone seen similar questions on GMAT ??? these are really tough ones...
Intern
Joined: 28 Jul 2011
Posts: 30
Location: United Kingdom
WE: Corporate Finance (Energy and Utilities)

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14 Oct 2011, 01:43
AB + CD = AAA, where AB and CD are two-digit numbers and AAA is a
three digit number; A, B, C, and D are distinct positive integers. In the
addition problem above, what is the value of C?

In this - how can u say that AAA should be 111 - i dint get it.
Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 7934
Location: Pune, India

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14 Oct 2011, 06:25
1
KUDOS
Expert's post
divyaverma wrote:
AB + CD = AAA, where AB and CD are two-digit numbers and AAA is a
three digit number; A, B, C, and D are distinct positive integers. In the
addition problem above, what is the value of C?

In this - how can u say that AAA should be 111 - i dint get it.

A B
+C D
______
A A A

Notice here that B+D ends with A (there could be a carry over so I cannot say that B+D = A)
Also, A + C ends with A.
When can this happen? e.g. Think 2 + x = .....2
What can you say about x? We can say that it must end with 0. Only then will you have 2 at the end.

Since all letters represent positive integers, C cannot be 0. Then it must be 9 and there must have been a carry over from previous addition to make 10. Then A + 10 will end with A and there will be a carry over of 1 which will appear as the hundred's digit. Since the hundred's digit is A, it must be equal to 1.
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Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for \$199

Veritas Prep Reviews

Intern
Joined: 14 Oct 2011
Posts: 1

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14 Oct 2011, 11:25
Thanks a lot for sharing!
Intern
Joined: 10 Jul 2011
Posts: 3

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15 Oct 2011, 09:34
Thanks!....Kudos.
Intern
Joined: 05 Sep 2011
Posts: 44

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17 Oct 2011, 04:25
Thanks a lot for sharing with us :D
Intern
Joined: 07 Oct 2011
Posts: 1

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20 Oct 2011, 07:59
Good stuff! Thanks!
Intern
Joined: 31 Jul 2011
Posts: 2
GPA: 3.99

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23 Oct 2011, 20:01
You just took away hours from sleep. I'll go over these tonight. Thanks!
Manager
Joined: 10 Jul 2010
Posts: 193

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08 Nov 2011, 18:50
great post, thanks!
Manager
Joined: 11 Nov 2011
Posts: 73
Location: United States
Concentration: Finance, Human Resources
GPA: 3.33
WE: Consulting (Non-Profit and Government)

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20 Nov 2011, 16:48
thanks for sharing
Manager
Joined: 16 Dec 2009
Posts: 74
GMAT 1: 680 Q49 V33
WE: Information Technology (Commercial Banking)

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24 Nov 2011, 10:27
Thanks a lot. Great compilation..
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Intern
Joined: 14 Nov 2011
Posts: 39
Location: Kenya

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01 Dec 2011, 06:18
Thanks for the share...!!
Re: 50 tricky questions   [#permalink] 01 Dec 2011, 06:18

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