Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,806

by: bb

29 Aug 2025, 13:27

ER

Is |a| = b − c ?

605-655 (Medium) | Absolute Values, Algebra

605-655 (Medium) | Absolute Values, Algebra hide tags

Tabouray

15 Mar 2019, 00:06

13

7

2,541

20 Apr 2023, 05:12

ER

240 students are to be arranged in n rows in the assembly hall

655-705 (Hard) | Algebra, Number Properties

655-705 (Hard) | Algebra, Number Properties hide tags

kiran120680

14 Mar 2019, 06:14

12

5

5,557

20 Apr 2023, 04:56

ER

Is x > y? (1) 9x = 4y (2) x = -y

655-705 (Hard) | Algebra, Inequalities

655-705 (Hard) | Algebra, Inequalities hide tags

Bunuel

27 Jan 2021, 01:15

12

4

2,811

20 Apr 2023, 00:58

If x and y are non-zero integers, is x/20 + y/4 = 50 ?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

ChandlerBong

19 Apr 2023, 23:55

5

1

1,371

19 Apr 2023, 23:15

ER

What is the value of 1/(x^2 - y^2) - 1/(x^2 + 2xy + y^2) ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Nov 2014, 09:53

19

6

6,114

by: KCL5728

17 Apr 2023, 08:52

ER

What is the value of x? (1) (x + 2)(x + 3) = 0 (2) x^2 + 5x + 6 = 0

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

10 Apr 2023, 01:30

2

1,969

16 Apr 2023, 22:48

ER

What is the value of s?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Mar 2023, 02:30

1

1,419

14 Apr 2023, 23:40

ER

What is the value of x + y? (1) x^2 + y^2 = 5 (2) xy = 2

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Apr 2023, 01:30

3

2

1,040

by: wickedvikram

13 Apr 2023, 02:22

ER

Is x = y ? (1) xy ≠ 0 (2) xy < 0

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

Bunuel

10 Dec 2016, 06:32

7

4

3,111

10 Apr 2023, 04:13

ER

What is the value of K?

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Exponents, Number Properties hide tags

Bunuel

29 May 2015, 05:26

38

3

6,443

07 Apr 2023, 23:41

ER

If x 0, is x*y = 0? (1) y = z (2) x = y + z

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

23 May 2022, 09:53

1

4

1,910

07 Apr 2023, 06:18

ER

What is the value of positive integer n ? (1) n^5! = 1 (2) n^5 = n!

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 May 2022, 12:35

9

8

3,281

by: Bunuel

07 Apr 2023, 04:44

ER

What is the value of x^2 - y^2 ? (1) x + y = 2x (2) x - y = 0

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

14 Jul 2022, 02:00

5

2

1,881

by: KarishmaB

04 Apr 2023, 22:05

ER

If in the equation x^2 – 2x – c = 10, x is a variable and c is a const

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

02 May 2019, 01:25

5

2

3,200

04 Apr 2023, 09:53

If a and b are positive integers, is ab < 6?

605-655 (Medium) | Algebra, Inequalities

605-655 (Medium) | Algebra, Inequalities hide tags

Bunuel

26 Sep 2016, 03:27

13

9

7,127

04 Apr 2023, 05:11

ER

If a^2 - b^2 = 0, does a = 0? (1) ab = 0 (2) b = -b

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

hkhanexam

07 Oct 2020, 01:57

13

4

3,756

03 Apr 2023, 04:58

ER

The infinite sequence a{1}, a{2}, …, a{n}, … is such that a{

555-605 (Medium) | Algebra, Sequences

555-605 (Medium) | Algebra, Sequences hide tags

hb

23 Jul 2018, 05:33

9

6

8,632

03 Apr 2023, 02:44

ER

What is the value of 2x - y? (1) x + y = 12 (2) x - y = 4

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Oct 2019, 23:15

1

3

5,106

02 Apr 2023, 13:16

ER

If x and y are different positive integers, what is the value of x + y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

31 Mar 2023, 02:45

2

1,050

by: Maria240895chile

31 Mar 2023, 13:08

ER

If xyz = x, is x = 0 ? (1) yz = 0 (2) xy = 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

31 Mar 2023, 04:45

1

994

by: GMATinsight

31 Mar 2023, 05:10

ER

If m/n = 7/4, what is the value of m + n ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

06 Aug 2017, 07:46

5

6

3,069

30 Mar 2023, 12:40

ER

If x is a positive integer and w is a negative integer, what is the

555-605 (Medium) | Algebra, Exponents

555-605 (Medium) | Algebra, Exponents hide tags

Bunuel

30 Mar 2023, 01:30

2

3

1,349

30 Mar 2023, 11:20

ER

What is the value of 4x + 18 ? (1) 2x + 9 = 14 (2) 8x + 18 = 38

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Mar 2023, 01:30

4

3

1,317

by: Rabab36

30 Mar 2023, 05:45

ER

Is x > 0 ? (1) x^3 + x^2 + x = 1 (2) x^2 4x - 5 > 0

705-805 (Hard) | Algebra, Inequalities

705-805 (Hard) | Algebra, Inequalities hide tags

Bunuel

28 Mar 2023, 10:45

7

1

1,013

by: atrivedi5

29 Mar 2023, 07:02

ER

What is the value of x ? (1) 5x + 5y = 25 (2) 3(x + y) = -3(y - x)

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Feb 2023, 04:54

1

2

2,151

by: yannichc

29 Mar 2023, 02:20

ER

If x and y are positive integers and x^y = x^(2y – 3), what is the

Sub 505 (Easy) | Algebra, Exponents

Sub 505 (Easy) | Algebra, Exponents hide tags

Bunuel

01 May 2017, 12:02

12

7

12,221

28 Mar 2023, 04:14

ER

If xy = 7, what is xy(x + y)^2 ? (1) x^2 + y^2 = 3 (2) x^2 = 1

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

22 Mar 2023, 09:30

4

7

1,893

by: Jitesh8

27 Mar 2023, 10:40

ER

Find ratio of x:y:z (1) 7x = 8z + 4y (2) 6z = 11y + 5x

605-655 (Medium) | Algebra, Fractions and Ratios

605-655 (Medium) | Algebra, Fractions and Ratios hide tags

fsritrai

11 Jun 2018, 22:11

8

3

3,317

by: Bunuel

27 Mar 2023, 01:40

Is x^2 * y^2< xy ?

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

idontknowwhy94

06 Oct 2016, 13:25

16

8

4,075

27 Mar 2023, 00:22

ER

What does |2b| equal?

805+ (Hard) | Absolute Values, Algebra

805+ (Hard) | Absolute Values, Algebra hide tags

galiya

25 Jun 2012, 12:23

69

19

13,601

25 Mar 2023, 23:04

ER

In the equation X^2+bX+12=0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

evgeniailyina2018

14 Jun 2020, 01:00

6

4

2,497

by: obahr

22 Mar 2023, 04:32

ER

The three sides of triangle have length p, q and r, each an integer.

805+ (Hard) | Algebra, Geometry

805+ (Hard) | Algebra, Geometry hide tags

giobas

22 Mar 2017, 10:02

143

18

12,984

21 Mar 2023, 22:18

ER

Is (a - 1)(b + 1) = 0? (1) (a - 1)^2 = 0 (2) |a - 1| + (b + 1)^2 = 0

655-705 (Hard) | Absolute Values, Algebra

655-705 (Hard) | Absolute Values, Algebra hide tags

Bunuel

19 Mar 2023, 06:30

4

2

1,282

by: lecremeglace

21 Mar 2023, 15:42

ER

Is x < z? (1) x = (1/2)y (2) y = 0.5z

605-655 (Medium) | Algebra, Inequalities

605-655 (Medium) | Algebra, Inequalities hide tags

kairoshan

23 Mar 2023, 05:36

18

3

11,358

21 Mar 2023, 06:49

ER

What is the value of st/u?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

13 Dec 2015, 05:30

7

5

5,034

21 Mar 2023, 06:21

ER

What is the value of y x^2 x? (1) y = 3x (2) y = 4(x + 1)

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

20 Mar 2023, 11:45

1

940

21 Mar 2023, 00:07

ER

If s*r^(1/2) = t, what is the value of r? (1) r^2 = 625 (2) t/s= 5

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

20 Mar 2023, 12:15

1

1,748

21 Mar 2023, 00:03

ER

Is |xy| = 12? (1) (y + 4)(x - 3) = 0 (2) y = 4

605-655 (Medium) | Absolute Values, Algebra

605-655 (Medium) | Absolute Values, Algebra hide tags

Bunuel

09 Jun 2022, 20:00

3

2

1,615

20 Mar 2023, 07:03

ER

What is the value of x?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 Jul 2015, 01:40

13

7

5,994

17 Mar 2023, 11:57

If M and N are integers, then is M positive?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

gmatophobia

12 Mar 2023, 22:19

2

1

1,107

by: stne

16 Mar 2023, 12:18

ER

Is x < 0 ? (1) x^3 < 0 (2) x^3 + 2x + 3 = 0

555-605 (Medium) | Algebra, Inequalities

555-605 (Medium) | Algebra, Inequalities hide tags

Bunuel

14 Mar 2023, 11:15

2

925

14 Mar 2023, 13:42

ER

If x and y are positive integers and x^2y = x^4y−6, what is the value

655-705 (Hard) | Algebra, Exponents

655-705 (Hard) | Algebra, Exponents hide tags

Bunuel

14 Apr 2021, 09:00

5

2

1,704

14 Mar 2023, 12:55

ER

Is y = 7?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2016, 13:34

14

16

5,911

14 Mar 2023, 12:43

ER

If a*b 0, and (x a)(x + b) = 0, is b = a? (1) x + a = 0 (2) x+b=0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Feb 2023, 02:30

5

3

1,487

by: Suvankar8250

14 Mar 2023, 02:08

ER

If r, s, and t are all positive, what is the ratio of r to s to t?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

09 Mar 2023, 02:30

3

2

1,096

13 Mar 2023, 01:38

ER

Is |a| = |ab|? (1) a b (2) a^10 b^10 = 0

655-705 (Hard) | Absolute Values, Algebra

655-705 (Hard) | Absolute Values, Algebra hide tags

Bunuel

29 Apr 2016, 02:43

9

6

3,723

12 Mar 2023, 17:48

ER

What is the value of 1/x + 1/y + 1/z ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 Feb 2018, 23:26

2

4

3,542

12 Mar 2023, 12:28

ER

If xyz ≠ 0, xy > 0, and x2 + xy + xz < 0, then which of the following

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Inequalities, Number Properties hide tags

CAMANISHPARMAR

25 Jan 2019, 09:37

34

5

6,662

12 Mar 2023, 07:51

ER

If each of c, d, and e is a positive one-digit number, what is the val

605-655 (Medium) | Algebra, Number Properties

605-655 (Medium) | Algebra, Number Properties hide tags

Bunuel

04 Dec 2017, 00:14

4

7

2,240