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View first unread post EMPOWERgmat PS Forum Expert - Ask Me Anything about PS and Math  

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EMPOWERgmatRichC

26

4604

26 Oct 2019, 19:33

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View first unread post Attachment(s) Veritas Prep PS Forum Expert - Karishma - Ask Me Anything about Math  

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VeritasKarishma

188

8816

14 Nov 2019, 20:23

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Announcements

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View first unread post 100 Hardest and easiest questions for PS as of October 2019  

Tags: Difficulty: 700-Level

Bunuel

12

102856

29 Jul 2019, 07:22

View the latest post Shrinidhi

1928
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View first unread post Attachment(s) GMAT PS Question Directory by Topic & Difficulty  

Tags: Difficulty: 600-700 Level,  Difficulty: 700-Level,  Difficulty: Sub-600 Level,  Combinations,  Mixture Problems,  Work/Rate Problems,  Source: GMAT Club Tests,  Source: GMAT Prep,  Source: Official Guide

bb

0

748778

22 Feb 2012, 11:27

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Topics

10
View first unread post If x(x-1)/(x-2)(x-3)<0 and x<>2 and x<>3, then which of the following  

Tags: Difficulty: 700-Level,  Algebra,  Source: Other - Please specify

Kinshook

7

330

18 Jul 2019, 22:36

View the latest post Chethan92

7
View first unread post What is the the value of (8+3[square_root]21[/square_root])^{[fraction  

Tags: Difficulty: 700-Level,  Algebra,  Source: Other - Please specify

Kinshook

3

252

12 Aug 2019, 03:45

View the latest post Shrey9

18
ER
View first unread post Two gardeners, Burton and Philip, work at independent  

Tags: Difficulty: 700-Level,  Algebra,  Work/Rate Problems,  Source: Other - Please specify

Kritesh

5

1566

09 Oct 2019, 22:54

View the latest post AdityaCrackVerbal

40
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View first unread post If n is an integer and 1/(n+1)<1/31+1/32+1/33<1/n, then what  

Tags: Difficulty: 700-Level,  Arithmetic,  Fractions/Ratios/Decimals,  Inequalities

LM

9

6663

23 Apr 2018, 14:25

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18
ER
View first unread post What is the tens' digit of the sum of the first 40 terms of  

Tags: Difficulty: 700-Level,  Arithmetic,  Fractions/Ratios/Decimals

LM

5

7677

17 Oct 2017, 11:28

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22
ER
View first unread post A certain car company manufactured x cars at a cost of c dollars per  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: Veritas Prep

LakerFan24

7

1896

18 Sep 2019, 06:56

View the latest post kdgupta

6
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View first unread post The mean weight of 12 packages a retailer needs to ship on Monday is 1  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: Princeton Review

LeenaSai

3

286

24 Aug 2019, 09:44

View the latest post IanStewart

8
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View first unread post If x^2+200x+9991=0, which of the following is a value of x?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Veritas Prep

LordStark

9

1060

23 Oct 2018, 19:23

View the latest post ScottTargetTestPrep

10
ER
View first unread post How many integer values of n satisfy the inequality  

Tags: Difficulty: 700-Level,  Algebra,  Exponents/Powers,  Source: Economist GMAT Tutor

LordStark

6

694

21 May 2019, 13:37

View the latest post Shubham007

36
ER
View first unread post x and y are positive integers such that x < y. If  

Tags: Difficulty: 700-Level,  Algebra,  Source: Magoosh

Lucky2783

8

9672

25 Nov 2018, 09:51

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11
View first unread post In a certain sequence a1, a2, ...an..., for n>1, each term is the sum  

Tags: Difficulty: 700-Level,  Arithmetic,  Sequences,  Source: 800 Score

MBA20

3

451

22 Apr 2019, 01:45

View the latest post lucajava

1
View first unread post Attachment(s) How many solutions does 1/[x*(x+1)]+1/[x*(x+2)]=1/(x+1) have? A. None  

Tags: Difficulty: 700-Level,  Algebra,  Source: 800 Score

MBA20

7

370

30 Mar 2019, 12:08

View the latest post lucajava

72
ER
View first unread post If it is 6:27 in the evening on a certain day, what time in  

Tags: Difficulty: 700-Level,  Arithmetic,  Word Problems,  Source: GMAT Paper Tests

Madelaine88

11

4806

03 Sep 2019, 13:20

View the latest post TheNightKing

12
ER
View first unread post p is equal to the product of 2^x, 3^y, and 5^z. If x, y, and z are pos  

Tags: Difficulty: 700-Level,  Algebra,  Min/Max Problems,  Source: GMAT Hacks

MaggieSG

10

2078

17 Sep 2018, 10:35

View the latest post bumpbot

4
View first unread post IF P = 9^{1/2} - 9^{1/3} - 9^{1/4}, then P is:  

Tags: Difficulty: 700-Level,  Arithmetic,  Exponents/Powers,  Source: Princeton Review

MahmoudFawzy

10

708

27 Jun 2019, 12:58

View the latest post menonrit

17
ER
View first unread post If x and y are integers, is y an even integer?  

Tags: Difficulty: 700-Level,  Algebra,  Source: GMAT Club Tests

Maksym

5

2290

08 Sep 2019, 11:25

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5
ER
View first unread post Amitabh picks a random integer between 1 and 999, doubles it and gives  

Tags: Difficulty: 700-Level,  Algebra,  Source: Other - Please specify

Manas1212

2

265

14 May 2019, 08:24

View the latest post Alpha14

18
ER
View first unread post In the equation x^2+kx+1=0, x is a variable and k is a constant  

Tags: Difficulty: 700-Level,  Algebra,  Source: Economist GMAT Tutor

Mascarfi

4

7156

19 Oct 2017, 10:17

View the latest post ScottTargetTestPrep

5
ER
View first unread post Alice and Bob were asked to solve the equation x^2+px+q=0. Alice obtai  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

4

658

13 Jan 2018, 18:59

View the latest post AvinashT2303

4
ER
View first unread post What is the simplified expression for 1/(√1+√2) + 1/(√2+√3) + 1/(√3+√4  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

3

288

07 Apr 2019, 18:43

View the latest post MathRevolution

13
ER
View first unread post Which of the following are roots of an equation x-2+2x-1-15=0  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

8

2615

07 Oct 2019, 07:38

View the latest post jvarmaonninen

28
ER
View first unread post If x-2=x+2 , x=?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

9

1447

22 Dec 2018, 02:18

View the latest post bumpbot

4
ER
View first unread post If x - 7 = √x + √7 , x = ?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

6

1107

29 Aug 2017, 23:37

View the latest post shashankism

5
ER
View first unread post Find x^4 + 1/x^4 if x – 1/x = 2.  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

2

381

25 Nov 2018, 18:38

View the latest post MathRevolution

7
ER
View first unread post [x] is the greatest integer less than or equal to x. What is the value  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

2

322

06 May 2019, 02:37

View the latest post MathRevolution

12
ER
View first unread post If x-5=√x+√5 , which of followings is true?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

3

1130

05 Jun 2019, 01:59

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8
ER
View first unread post If a>b>0, a2+b2=6ab, (a+b)/(a-b)=?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

3

3299

06 Jun 2018, 02:14

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4
ER
View first unread post Which of the following is equal to  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

4

810

18 Jan 2018, 08:44

View the latest post ScottTargetTestPrep

3
ER
View first unread post What is the value of 1 / (√2+√1) + 1 / (√3+√2) + 1/(√4+√3) + … + 1/(√2  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

3

274

23 Jun 2019, 18:28

View the latest post MathRevolution

5
ER
View first unread post Attachment(s) What is the value of  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

4

280

25 Apr 2019, 01:24

View the latest post MathRevolution

12
ER
View first unread post How many factors of 330 are odd numbers greater than 1?  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

7

1807

08 Sep 2018, 07:36

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5
ER
View first unread post What is the sum of the roots of the equation 4^x – 6·2^x + 8 = 0?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

6

497

08 May 2019, 10:44

View the latest post MathRevolution

2
ER
View first unread post 40,105*26*10,112 is the approximation of which of the following? A  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

2

658

01 Mar 2017, 04:49

View the latest post MathRevolution

11
ER
View first unread post Which of the following is closer to √0.5+√0.05?  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

6

1201

11 Mar 2019, 06:04

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7
ER
View first unread post (x^8y^2+x^2y^8)/(x^2+y^2)=?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

3

431

02 Jan 2019, 01:46

View the latest post MathRevolution

4
ER
View first unread post Attachment(s) Which of the following are roots of an equation 10x^{-2}+x^{-1}-21=0  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

3

430

11 Nov 2018, 23:06

View the latest post MathRevolution

15
ER
View first unread post If x^2=2x+1, x^3=?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

4

1263

18 Feb 2019, 01:30

View the latest post KanishkM

8
ER
View first unread post For a positive integer n, f(n) is defined as 1 + 1/2 + 1/3 + … + 1/n.  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

5

404

20 Oct 2019, 10:15

View the latest post vs224

7
ER
View first unread post A book has 1000 pages numbered 1, 2, 3, …, and so on. How many times d  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

6

493

09 May 2019, 02:44

View the latest post MathRevolution

3
ER
View first unread post Both roots of the quadratic equation x^2-39x+a = 0 are prime numbers.  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

4

391

30 Jun 2019, 18:05

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17
ER
View first unread post (7^3)a+(7^2)b+7c+d=1045, where a, b, c, and d are integers from  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

8

1304

19 Oct 2018, 00:12

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8
ER
View first unread post If a≠b, and a^2/(a-b)=b, which of the following could be a?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

4

678

17 Apr 2019, 09:07

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11
ER
View first unread post Each of A, B and C represents a one-digit integer. AB and BA are two-d  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

5

367

29 May 2019, 03:18

View the latest post RJ7X0DefiningMyX

18
ER
View first unread post If x-5=x+5 , x=?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

8

1323

06 Dec 2018, 13:36

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5
ER
View first unread post Which of the following is closest to (10^19-10^3)/(10^17+1)?  

Tags: Difficulty: 700-Level,  Arithmetic,  Source: Math Revolution

MathRevolution

7

1256

01 Nov 2019, 07:50

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5
ER
View first unread post What is (-1)*(-1)^2*(-1)^3* *…*(-1)^{2019}?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

6

276

28 Oct 2019, 14:32

View the latest post saumya2805

16
ER
View first unread post Which of the following cannot be the factor of x4 + 10x3 + 35x2 + 50x  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

4

1910

12 May 2018, 11:25

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6
ER
View first unread post xyz=2, what is the value of x/(xy+x+2) + y/(yz+y+1) + 2z/(zx+2  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

3

263

29 Sep 2019, 23:20

View the latest post Kanika3agg

4
ER
View first unread post If 2^{10}≒10^3 and 5^{20}≒10^x, then what is the value of integer x?  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

6

224

20 Nov 2019, 01:21

View the latest post MathRevolution

2
ER
View first unread post For positive integers x and y, xy is defined by xy=(x+y)/xy. If a, b  

Tags: Difficulty: 700-Level,  Algebra,  Source: Math Revolution

MathRevolution

7

949

19 Dec 2017, 11:12

View the latest post ashitaporwal

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