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GRE: Quant question 28 Apr 2024, 00:54
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quite different from what you typed before. in my humble opinion which is REALKLY ONLY my opinion and should take it as it is a students should NOT practice questions from sources which we do not have a certain origin such as chinese website. we do have a website wth reliable resources such as our gre club where you can find over 14k quant question in every single GRE tested area. explanations by expert both on the quant side and the verbal side for free, guides etec etec etec etc ad infnitum.........nonetheless nobody forbids you to post here. of course. We are here to help you. of course
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GRE: Quant question 28 Apr 2024, 01:06
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­also I am not sure this question is legit: how can we obtain the subsets ? we should consider the odd integers ? the even? the multiples? surely chetan2u is more expert and skilled than me on the quant side. I am the verbal guy, if any
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GRE: Quant question 29 Apr 2024, 19:24
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NUmber of subsets in any set containing n elements are 2^n. A=2^8, B=2^9-2^8=2^8(2-1)=2^8. So, A=B
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GRE: Quant question 03 May 2024, 10:05
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For each set of three distinct nonzero digits, consider the sum of all positive three-digit integers that can be formed by the digits. For example, for the three digits 1, 2, and 3, the sum of all positive three-digit integers that can be formed by the digits is 123 + 132 + 213 + 231 + 312 + 321 = 1,332. How many different integers are equal to such a sum?

A. 9
B. 11
C. 14
D. 19
E. 24
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GRE: Quant question 03 May 2024, 10:34
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The sum of three different positive integers is 11.

Which two of the following statements together provide sufficient information to determine the three integers?

Indicate two such statements.
A None of those three can be 1
B None of those three can be 4
C None of those three can be 7
D None of those three can be 8
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GRE: Quant question 03 May 2024, 11:19
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For each set of three distinct nonzero digits, consider the sum of all positive three-digit integers that can be formed by the digits. For example, for the three digits 1, 2, and 3, the sum of all positive three-digit integers that can be formed by the digits is 123 + 132 + 213 + 231 + 312 + 321 = 1,332. How many different integers are equal to such a sum?

A. 9
B. 11
C. 14
D. 19
E. 24
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­The sum of the 6 different permutations of abc =

100a+10b+c

+100a+10c+b

+100b+10a+c

+100b+10c+a

+100c+10a+b

+100c+10b+c

=222(a+b+c)

Therefore, the sum of a+b+c determines the sum of the 6 different permutations of abc

How many different sums of a+b+c are there, and how many sums of 6 different permutations of abc are there?

The minimum case of the sum of a+b+c, 1+2+3=6, the sum of six different permutations=6*222

The maximum case of the sum of a+b+c, 7+8+9=24, the sum of six different permutations=24*222

1, 2, 3, 4, 5, 6, 7, 8, 9 numbers are used arbitrarily, then the sum of a+b+c can be obtained continuously from 6 to 24, and there are 24-6+1=19 possibilities

There are 19 different sums of a+b+c, so there are 19 sums of 6 different permutations of abc
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GRE: Quant question 03 May 2024, 11:20
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­Too tough for a real GRE question.

I, as Carcass, would not practice such questions. MY personal opinion ,though

Personal opinion though­
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GRE: Quant question 03 May 2024, 11:23
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Alex55
The sum of three different positive integers is 11.

Which two of the following statements together provide sufficient information to determine the three integers?

Indicate two such statements.
A None of those three can be 1
B None of those three can be 4
C None of those three can be 7
D None of those three can be 8
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­I do not where you take such a question because it is a data sufficiency question modified as MAC for the GRE

The question is located here  https://gmatclub.com/forum/the-sum-of-t ... l#p3109334


  :dontknow:­
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GRE: Quant question 03 May 2024, 11:25
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Alex55
The sum of three different positive integers is 11.

Which two of the following statements together provide sufficient information to determine the three integers?

Indicate two such statements.
A None of those three can be 1
B None of those three can be 4
C None of those three can be 7
D None of those three can be 8
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­Assuming all values ​​are taken from (1 2 3 4 5 6 7 8 9 10),
First exclude 10 and 9, because the remaining two numbers must be different positive numbers, 1/1 will not work, and 1/0 will not work.
That leaves (1 2 3 4 5 6 7 8), of which you can only choose one among (5 6 7 8) and two among (1 2 3 4).
(1 2 3 4 | 5 6 7 8)
Then if two are excluded from (1 2 3 4), there will be only two values ​​left, and the remaining one will be determined.
So choose "No 1" and "No 4".
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GRE: Quant question 05 May 2024, 23:42
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Ans A why

D explain plz

C how. if the sum of 2 side is 10 and a side of 5 then it will become a equilateral. i dont get it
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GRE: Quant question 06 May 2024, 10:00
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C how. if the sum of 2 side is 10 and a side of 5 then it will become a equilateral. i dont get it
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The answer cannot be C here. It is D. An isosceles triangle has two equal sides, but in this case, we do NOT know which side. The answer is D
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D explain plz
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here the answer is D or C?

r and s are in the II quadrant, r is negative and s is positive . Howevere, considering the slope of the line s>r which means that the result is positive and the answer is A

I would suggest you sir , in my humble opinion, to brush your quant skills using our GRE handout

https://gmatclub.com/forum/gre-math-ess ... 27648.html­
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GRE: Quant question 08 May 2024, 03:50
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Hi

to all of those are studying for the GRE, I would like to have some feedback

are you interested if I start a daily challenge topic wise quant questions to post on GRE prep claub

how many of you are interested in ?

is it a good idea or .........? let me know what you think guys

Many Thanks
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GRE: Quant question 08 May 2024, 03:54
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will see if we receive some more feedback

o partecipation

thank you in the meantime
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GRE: Quant question Updated on: 11 May 2024, 12:15
Originally posted by Alex55 on 11 May 2024, 07:21.
Last edited by carcass on 11 May 2024, 12:15, edited 3 times in total.
Fixed
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The function f is defined by \(f(x) = 2^{−x^2}\) for all integers x. Which of the following could be the value of f(x)?

Indicate all such values.

A. -2
B. -1
C. -0.5
D. 0
E. 0.5
F. 1
G. 2­
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GRE: Quant question 11 May 2024, 12:10
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I think something is missin in the question f(x)=2^ to what ?­
 
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­I fixed it see above­
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GRE: Quant question 11 May 2024, 12:26
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­A,B,C, and D are negative values and this is impossible because x^2 is always positive. So they are out

\(2^{-1}=0.5\) and E is possible

2^0 is 1 and F is possible

G is not possible also

E and F should be the correct answers
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GRE: Quant question 11 May 2024, 22:53
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The function f is defined by f(x) = 2^−x^2 for all integers x. Which of the following could be the value of f(x)? Indicate all such values. A-2 B-1 C-0.5 D0 E0.5 F1 G2
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f(x)=2^(-x^2)… so whatever be the value of x, f(x) will never be negative or 0. Discard A to D…. Next, 2^(-x^2)=1/2^(x^2), so it will never be greater than 1. Discard G. Answer: 0.5 when x=1, and 1 when x=0
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GRE: Quant question 14 May 2024, 03:19
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GRE Quant & Verbal ADVANCED Daily Challenge 2024 Edition

https://gre.myprepclub.com/forum/gre-qu ... ml#p116452
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GRE: Quant question 29 May 2024, 08:46
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