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She can also choose 122, 221, 166 and many others so the answer is not unique. And hence I said that without any other information, the question doesn’t make sense
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Arya_S
She can also choose 122, 221, 166 and many others so the answer is not unique. And hence I said that without any other information, the question doesn’t make sense
Yes, question should have option to choose the correct one.

Only with the given information you cannot confirm the correct ans

I only tried to solve as per info that ...the ans could be any 3 digits number

Between 100 and 999
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Illusion2919
If 5 integers are to be selected at random and without replacement from the list consisting of the 20 integers from 1 to 20, inclusive, what is the probability that 2 of the 5 selected integers will be 10 and 20 ? A. 2/5 B. 1/4 C. 1/10 D. 1/19 E. 1/60
total probability is 20C1 and 19C1 and favourable probability is 5C1 and 4C1. so answer is 1/19
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Really struggling with number system.

Done with basics. Struggling with questions.

Any source of practising good questions for concept clarity .

Gmat club questions bank is huge .. unable to filter the right questions.

Please do help . Really stressed
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Really struggling with number system. Done with basics. Struggling with questions. Any source of practising good questions for concept clarity . Gmat club questions bank is huge .. unable to filter the right questions.
Filter 500-600 and choose source OG, maths rev, manhattan .
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Anirban_iimisb
Really struggling with number system.

Done with basics. Struggling with questions.

Any source of practising good questions for concept clarity .

Gmat club questions bank is huge .. unable to filter the right questions.

Please do help . Really stressed
­
You can practice questions on GMAT Club by exploring various forums and applying necessary filters:


Make sure you are signed in to access features like the timer and the error log. To access forum quizzes or GMAT Club Tests, a subscription is required. GMAT Club Tests are well-known for their challenging quantitative problems.

For quant resources and guide check:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread

For Data Insights check Data Insights Forums.

You can find verbal resources in Verbal Guides and Resources

Hope it helps.­
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Hi,
I was practicing the gmat flashcards available on gmatclub.
gmat-flashcards-108651.html
On page 28, if you see the solution, it says sqrt(x-3)^2 is (3-x).

How is that possible
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Gprabhumir
Hi, I was practicing the gmat flashcards available on gmatclub. gmat-flashcards-108651.html On page 28, if you see the solution, it says sqrt(x-3)^2 is (3-x).
Can you post the question here pls?
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Gprabhumir
Hi, I was practicing the gmat flashcards available on gmatclub. gmat-flashcards-108651.html On page 28, if you see the solution, it says sqrt(x-3)^2 is (3-x).
If you read the next point carefully, you will get your answer.
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Gprabhumir
Hi,
I was practicing the gmat flashcards available on gmatclub.
https://gmatclub.com/forum/gmat-flashcards-108651.html
On page 28, if you see the solution, it says sqrt(x-3)^2 is (3-x).

How is that possible
­
If each expression under the square root is greater than or equal to 0, what is \(\sqrt{x^2 - 6x + 9} + \sqrt{2 - x} + x - 3\)?

A. \(\sqrt{2 - x}\)
B. \(2x - 6 + \sqrt{2 - x}\)
C. \(\sqrt{2 - x} + x - 3\)
D. \(2x - 6 + \sqrt{x - 2}\)
E. \(x + \sqrt{x - 2}\)

Absolute Value Properties:

When \(x \le 0\), then \(|x|=-x\), or more generally, when \(\text{some expression} \le 0\), then \(|\text{some expression}| = -(\text{some expression})\).

When \(x \ge 0\), then \(|x|=x\), or more generally, when \(\text{some expression} \ge 0\), then \(|\text{some expression}| = \text{some expression}\).

Another important property to remember is \(\sqrt{x^2}=|x|\).

Back to the Original Question:

    \(\sqrt{x^2 - 6x + 9} + \sqrt{2 - x} + x - 3=\)

    \(=\sqrt{(x-3)^2}+\sqrt{2-x}+x-3=\)

    \(=|x-3|+\sqrt{2-x}+x-3\).

Now, since the expressions under the square roots are greater than or equal to zero, then \(2-x \ge 0\), which implies \(x \le 2\). Next, since \(x \le 2\), the expression \(x-3\) inside the absolute value is negative. Therefore, \(|x-3|=-(x-3)=-x+3\). This allows us to rewrite the above expression as follows:

    \(|x-3|+\sqrt{2-x}+x-3=\)

    \(=-x+3+\sqrt{2-x}+x-3=\)

    \(=\sqrt{2-x}\).

Answer: A­­­­

You can find a detailed discussion of this question here:

https://gmatclub.com/forum/if-each-expr ... 87153.html­
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is there any similiar group for CR and RC ?
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SnorLax_7
is there any similiar group for CR and RC ?
­
Check Verbal chat here: 

https://gmatclub.com/forum/mchat.php?room_id=50050617

Check DI chat here: 

https://gmatclub.com/forum/mchat.php?room_id=50050723

Hope it helps.
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Thanks a lot Bunuel
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Hey mates, I’ve my first GMAT test Friday, and I’m really worried about one thing but I ca’t find a definitive answer. For the test (especially for the quant section), we just have the board in the computer with the test (awful design) or we have in addition a sheet and a pen??? Tell me the truth even if I’m expecting that your answer is the one that I want haha.
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Iwen
Hey mates, I’ve my first GMAT test Friday, and I’m really worried about one thing but I ca’t find a definitive answer. For the test (especially for the quant section), we just have the board in the computer with the test (awful design) or we have in addition a sheet and a pen??? Tell me the truth even if I’m expecting that your answer is the one that I want haha.
If you are giving the test at centre then, a booklet/sheet with 2 markers will be provided to you
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