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Sketchitesh
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Main Chatroom 08 May 2025, 05:08
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Best way to use ~200 rewards points ?
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siddhantvarma
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Main Chatroom 08 May 2025, 22:17
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ravi1522
Hello, it is any thumb rule when you should take official exam based on difference between mock score and target score ?
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There’s no universal thumb rule as such. If you’re scoring near to your target score consistently, you can take the official exam. A +-10 points deviation consistently may be a good indicator.

Sketchitesh
Best way to use ~200 rewards points ?
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I’ve used my reward points for Forum quiz and GMAT Club tests and I wasn’t disappointed at all. But it also depends on where you are in your prep. Expert global test series maybe a good investment too if you want additional practice tests
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rak08
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Main Chatroom 08 May 2025, 22:24
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During its supply delivery trip, did Drone Z ever exceed a speed of 120 kilometers per hour?


(1) Drone Z took more than 4 hours to complete the trip.

(2) Drone Z traveled a total of 480 kilometers during the trip

DS ^ , why is the answer not C. As even for 4.001 hr for 480 kms. the speed will be <120.
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yc168
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Main Chatroom 08 May 2025, 23:42
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rak08
DS ^ , why is the answer not C. As even for 4.001 hr for 480 kms. the speed will be <120.
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The average speed may be <120, but at certain instance the speed can be >120.
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GMAT1034
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Main Chatroom 09 May 2025, 01:16
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Hi, has anybody faced postponing of their GMAT Appointment because of this India -Pak thing recently
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Dereno
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Main Chatroom 09 May 2025, 02:54
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I am not aware of it. Test centres pertaining to specific areas esp border regions - where the situation is tense might have been postponed due to administrative and safety reasons. But, pan India postponement of exam is highly unlikely.. As the war has not escalated still beyond proportion.
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Main Chatroom 09 May 2025, 07:26
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Dereno
I am not aware of it. Test centres pertaining to specific areas esp border regions - where the situation is tense might have been postponed due to administrative and safety reasons. But, pan India postponement of exam is highly unlikely.. As the war has not escalated still beyond proportion.
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alright thanks

just wanted to know how much prior do they inform if anything alike occurs
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Main Chatroom 09 May 2025, 07:47
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Aishna1034
just wanted to know how much prior do they inform if anything alike occurs
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They can cancel it 1 day prior to the date.
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Main Chatroom 09 May 2025, 22:46
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how to choose specific questions for practice from GMAT club. There are too many questions, any specific way for filtering out specific questions. (one filter I have done basis difficulty level).
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BKD5050
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Main Chatroom 10 May 2025, 00:19
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how to activate error log feature on gmat club?

pls ignore
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VirenderSingh092
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Main Chatroom 10 May 2025, 00:26
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BKD5050
how to choose specific questions for practice from GMAT club. There are too many questions, any specific way for filtering out specific questions. (one filter I have done basis difficulty level).
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There are filters available that you can use.
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VirenderSingh092
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Main Chatroom 10 May 2025, 00:27
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Northwestern61
like r1 starts around july 2 nd week so when does r2 starts

september 1st week or after decision ?
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Usually, R2 deadlines would start immediately after R1 deadlines. Schools announce their deadlines well in advance and your application is accepted in the next round after the first round ends.
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Main Chatroom 10 May 2025, 04:52
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How to pratice for quantitative aptitude
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Main Chatroom 10 May 2025, 05:04
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Hi
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Sayan597
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Main Chatroom 10 May 2025, 10:56
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Hey can anyone please explain why option 1 is the right answers instead of 4 :
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Main Chatroom 10 May 2025, 11:00
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Sayan597
Hey can anyone please explain why option 1 is the right answer instead of 4 :
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Whenever you see the sqrt symbol in GMAT, you are always supposed to take the positive roots.

If the question were {f(X)}^2 = x-5 isntead , then the solution would have been : {-5,-8,-10,5,8,10} @Sayan597
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Main Chatroom 10 May 2025, 11:05
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Correct me if I am wrong @Bunuel.
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Bunuel
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Main Chatroom 10 May 2025, 11:05
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Even roots cannot give negative results.
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Bunuel
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Main Chatroom 10 May 2025, 11:08
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Even roots cannot give negative result.

\(\sqrt{...}\) is the square root sign, a function (called the principal square root function), which cannot give negative result. So, this sign (\(\sqrt{...}\)) always means non-negative square root.


The graph of the function f(x) = √x

Notice that it’s defined for non-negative numbers and is producing non-negative results.

TO SUMMARIZE:
When the GMAT provides the square root sign for an even root, such as a square root, fourth root, etc. then the only accepted answer is the non-negative root. That is:

\(\sqrt{9} = 3\), NOT +3 or -3;
\(\sqrt[4]{16} = 2\), NOT +2 or -2;
Similarly \(\sqrt{\frac{1}{16}} = \frac{1}{4}\), NOT +1/4 or -1/4.


Notice that in contrast, the equation \(x^2 = 9\) has TWO solutions, +3 and -3. Because \(x^2 = 9\) means that \(x =-\sqrt{9}=-3\) or \(x=\sqrt{9}=3\).
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Main Chatroom 10 May 2025, 11:16
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Sayan597
Hey can anyone please explain why option 1 is the right answer instead of 4 :
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because then you will get imaginary value which is not defined in the set X that’s why , had it been defined in the set X it would have been the choice
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