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# Problem Solving (PS)

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 EMPOWERgmat PS Forum Expert - Ask Me Anything about PS and Math   Go to page: 1, 2 Tags: Source: EMPOWERgmat
EMPOWERgmatRichC

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27 Sep 2019, 11:20

 Veritas Prep PS Forum Expert - Karishma - Ask Me Anything about Math   Go to page: 1 ... 7, 8, 9 Tags: Source: Veritas Prep
VeritasKarishma

179

8227

12 Oct 2019, 01:31

Announcements

509
ER
 100 Hardest and easiest questions for PS as of September 2019
Bunuel

12

100941

29 Jul 2019, 07:22

1905
ER
 GMAT PS Question Directory by Topic & Difficulty
bb

0

739863

22 Feb 2012, 11:27

Topics

16
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 If ab = x and a/b = y, and ab does not equal zero, then
Bunuel

8

5382

25 Apr 2019, 16:24

4
ER
 Penniless Pete's piggy bank has no pennies in it, but it has 100 coins
Bunuel

3

354

22 Mar 2019, 09:26

25
ER
 If 7(a – 1) = 17(b – 1), and a and b are both positive integers the pr
Bunuel

7

822

30 Nov 2018, 08:33

23
ER
 For all numbers a and b, the operation is defined by ab = a^2 - ab.
Bunuel

9

6524

11 Aug 2019, 02:55

3
ER
 If x^a*y^b*z^c equals the product of 154 and 56, z > y > x, and a > b
Bunuel

3

641

02 Jul 2018, 05:39

2
ER
 Let x and y be two-digit positive integers with mean 60. What is the m
Bunuel

3

460

18 Apr 2019, 14:43

2
ER
 In the sequence above, the first 3 terms repeat without end. What is
Bunuel

1

637

11 Dec 2018, 03:48

37
ER
 If the quantity 5^2 + 5^4 + 5^6 is written as (a + b)(a – b), in which
Bunuel

8

2247

03 Dec 2018, 23:18

6
ER
 A carpet is y yards long and f feet wide. How many dollars will it cos
Bunuel

6

1292

20 Apr 2018, 03:08

3
ER
 Which of the following procedures is always equivalent to adding 5
Bunuel

3

1470

17 Apr 2019, 09:01

31
ER
 If (a + b):(b + c):(c + a) = 6:7:8 and a + b + c = 14, then find a:b:c
Bunuel

6

16828

09 Oct 2019, 17:25

10
ER
 Points A, B, C, and D are on the number line above, and AB = CD = 1/3
Bunuel

4

1837

29 Jul 2019, 10:34

708
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 New Algebra Set!!!   Go to page: 1 ... 6, 7, 8 Tags: Difficulty: 700-Level,  Algebra,  Sequences,  Source: GMAT Club Tests
Bunuel

144

199520

08 Jun 2019, 10:04

16
ER
 For consecutive even integers a and b, a > b. If a^2 + b^2 = 340 whicH
Bunuel

8

2295

17 Jul 2018, 22:27

12
ER
 For how many integers n between 1 and 50, inclusive, is (n^2 - 1)!/(n!
Bunuel

1

563

15 May 2019, 22:12

17
ER
 At how many points does the parabola y = 1/2*x^2 intersect the hyperbo
Bunuel

8

1489

25 Nov 2018, 17:50

6
ER
 For how many ordered pairs of positive integers (x,y) is x + 2y = 100?
Bunuel

10

585

29 Mar 2019, 13:03

46
ER
 [[x]] is equal to the lesser of the two integer values closest to non-
Bunuel

5

4110

05 Nov 2018, 02:43

2
ER
 If -1 < x < y < 0 which of the following shows the expressions xy, x^
Bunuel

4

685

17 Aug 2019, 00:44

26
ER
 If 3a – 2b – 2c = 32 and 3a - 2b + 2c = 4, what is the value of a + b
Bunuel

11

1322

02 Oct 2017, 12:55

33
ER
 If x^1+x^(−1)=5, what is the value of x^4+x^(−4)?
Bunuel

8

3529

20 Sep 2019, 07:00

9
ER
 If x^2 – y^2 = 16 and x + y > x – y, then which one of the following
Bunuel

4

338

04 Apr 2019, 18:24

8
ER
 &, #, and each represents a different digit, and & multiplied by #
Bunuel

8

1575

27 Dec 2016, 16:42

10
ER
 If a and b are positive numbers such that a + b =2, which of the foll
Bunuel

2

625

29 Mar 2018, 17:37

10
ER
 Which of the following equations has two different roots?
Bunuel

6

2067

22 May 2018, 11:02

8
ER
 If a – b = 16 and a^(1/2) + b^(1/2) = 8, what is the value of (ab)^(1)
Bunuel

3

558

21 Jul 2019, 16:33

23
ER
 For integers x and y, which of the following MUST be an integer?
Bunuel

12

2601

08 Oct 2019, 10:13

3
ER
 The Earth travels around the Sun at an approximate speed of 20 miles p
Bunuel

9

5088

07 Mar 2019, 20:52

8
ER
 The sum of x and y is at least 2 but no more than 5. If the total of
Bunuel

2

469

01 Jun 2018, 11:19

ER
 Let U = 2*2004^2005, V = 2004^2005, W = 2003*2004^2004, X = 2*2004^200
Bunuel

1

276

21 Mar 2019, 09:04

52
ER
 If x^2−5x+6=2−|x−1|, what is the product of all possible values of x?
Bunuel

8

3096

31 Aug 2018, 17:03

16
ER
 If x and y are integers such that (x+1)^2 is less than or equal to 36
Bunuel

8

4771

16 Apr 2018, 15:17

43
ER
 What is the units digit of 66^6 - 5^55?
Bunuel

16

2931

08 Oct 2019, 00:58

3
ER
 Which one of the following is closest to 1?
Bunuel

6

407

02 Jun 2019, 08:50

29
ER
 For which of the following functions does f(x) = f(1/x), given that x
Bunuel

7

4152

06 Oct 2018, 13:26

4
ER
 If f(x) = (x - 1)^2 + 3, which of the following is true for all x?
Bunuel

4

952

20 Oct 2018, 20:49

3
ER
 How many ordered pairs of positive integers (M,N) satisfy the equation
Bunuel

3

474

26 Apr 2019, 15:33

8
ER
 The length, width, and height of a rectangular box are in the ratio of
Bunuel

2

784

30 Mar 2018, 10:55

5
ER
 Max has x dollars. He goes into a candy store and buys y pieces of can
Bunuel

5

461

15 May 2019, 13:42

5
ER
 If x, y, and z are positive numbers satisfying x + 1/y = 4, y + 1/z =
Bunuel

1

294

15 Mar 2019, 01:45

22
ER
 The area of one square is x 2 + 10x + 25 and the area of another squar
Bunuel

10

2701

26 Aug 2018, 05:58

3
ER
 (15^6 − 15^4)/(3^6 − 3^4) =
Bunuel

3

527

07 Nov 2018, 04:37

6
ER
 If a > 0 and b < 0, which of the following statements are true about
Bunuel

2

268

27 May 2019, 03:51

133
ER
 The last digit of 12^12 + 13^13 – 14^14×15^15 =
Bunuel

14

8625

14 Aug 2019, 21:35

31
ER
 The sum of the digits of 10^x−1 is equal to 3^8. What is the value of
Bunuel

6

2021

22 Jun 2018, 11:33

279
ER
 The product of all the prime numbers less than 20 is closest to which
Bunuel

15

61076

03 Oct 2019, 19:05

22
ER
 If (x + 2)^2 = 9 and (y + 3)^2 = 25, then what is the maximum value of
Bunuel

5

5515

19 Nov 2018, 23:17

120
ER
 The product of two negative numbers is 160. If the lesser of the two
Bunuel

26

16982

15 Sep 2019, 10:45

16
ER
 The "luminous flux," or perceived brightness, of a light source is
Bunuel

18

3876

07 Mar 2019, 02:44

21
ER
 If y = ax + b and y = cx + d for all values of x, where a, b, c, and d
Bunuel

6

6323

03 May 2018, 01:17

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