GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

179

15

79,689

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

188,974

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,670

by: bb

29 Aug 2025, 13:27

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If z is a positive integer, is z + 1 a factor of 105?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

d999

11 Mar 2020, 02:55

15

3

4,463

by: bumpbot

13 Apr 2024, 01:44

ER

12 Days of Christmas GMAT Competition - Day 7: A certain online store

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2, 3, 4

Bunuel

24 Dec 2024, 09:00

61

65

4,463

by: bumpbot

27 Dec 2025, 09:18

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The original price of a jacket was $80. This price was discounted x pe

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Russ19

21 Jan 2021, 07:33

22

5

4,464

by: bumpbot

13 Aug 2025, 01:13

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Is y > 0? (1) 3x + 2y > z + 4 (2) 6x - 7 < 5y + 2z

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

27 Jun 2017, 00:34

25

5

4,465

by: bumpbot

11 Aug 2025, 09:03

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If x is an integer, is x odd? (1) x + (x + 1) + (x + 2) is odd (2) x^2

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

19 Jun 2018, 07:00

8

6

4,466

by: Bunuel

14 Jun 2022, 01:18

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Is x > x^2?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

rxs0005

24 Jan 2011, 08:38

9

10

4,467

by: bumpbot

24 Jun 2019, 04:54

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If a and b are positive integers, is √(a+b) an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

16 Feb 2015, 06:56

9

7

4,467

by: bumpbot

03 Feb 2022, 03:29

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In the xy-plane, does the line y = 2x - 1 contain the point (p,q)?

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

Bunuel

27 Sep 2021, 01:30

15

6

4,467

by: TBT

27 Jan 2023, 07:01

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If John deposited 1000$ in a certain bank account, where the interest

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

GMATBusters

29 Sep 2018, 10:37

15

9

4,467

by: Su_bha

28 Mar 2024, 12:12

ER

The average height of a group of children is 125 cm. If one of the chi

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

08 Jul 2016, 08:06

7

5

4,467

by: bumpbot

06 Oct 2024, 23:02

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If x is an integer and |x - 3| + |x + 4| <= |x + 8|, what is the value

805+ (Hard) | Absolute Values, Inequalities

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

Bunuel

10 Jan 2021, 12:37

26

8

4,467

by: bumpbot

05 Aug 2025, 04:23

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If y ≠ 0, is x/y=1/2?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Carcass

01 Nov 2018, 03:20

2

4,468

by: BrentGMATPrepNow

23 Nov 2021, 07:43

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Is 1/(p^q - q^p) > 1

705-805 (Hard) | Algebra, Inequalities

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

EgmatQuantExpert

24 May 2017, 12:00

38

6

4,468

by: bumpbot

23 Aug 2022, 08:50

ER

How much did the taxi driver charge George for the trip to the airport

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

19 Oct 2019, 06:51

4

2

4,469

by: bumpbot

23 Nov 2023, 04:22

ER

A set has a series of numbers such as a that

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

alphonsa

02 Aug 2014, 01:42

18

6

4,470

by: bumpbot

25 Nov 2025, 00:09

ER

What is the value of the integer p?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

29 Oct 2019, 21:50

1

3

4,471

by: Naman29

19 Nov 2019, 11:07

ER

How much money would Kimberly have saved if she had bought her cheese

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

30 Apr 2026, 10:37

23

7

4,471

by: bumpbot

30 Mar 2024, 08:04

ER

For each customer, a yogurt shop charges a cents for the

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

gmatgambler

13 Jan 2014, 06:13

2

6

4,473

by: bumpbot

13 Jan 2022, 02:43

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Is |a^2 - b^2| < 10? (1) |a - b| < 5 (2) |a + b| < 2

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

MathRevolution

14 Jul 2016, 21:34

21

10

4,473

by: stoned

13 Mar 2022, 01:50

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If p + q = 400 and p < q, is (p + q) < (r + s) ? (1) p + r + s = 600

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

04 Nov 2019, 02:45

5

3

4,473

by: bumpbot

21 Mar 2022, 02:45

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Is x > 0 ? (1) |x – 5| = 7x + 2 (2) |x – 3| = |15x – 3|

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Bunuel

09 Apr 2021, 14:50

13

2

4,473

by: bumpbot

25 Nov 2025, 05:57

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If r/s = 2/5 , what is the value of rs ?

Poor Quality

Poor Quality hide tags

piyatiwari

30 May 2012, 17:27

2

4

4,474

by: rggoel9

05 Jun 2012, 04:56

ER

HOT Competition (Instagram) 27 Aug/11:45PM: In the rectangular coordi

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Bunuel

27 Aug 2020, 23:45

20

10

4,474

by: Bunuel

21 Sep 2021, 02:27

ER

A number of ties are individually packaged in unmarked boxes. What is

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

08 Mar 2018, 21:19

17

13

4,474

by: Bunuel

08 Jan 2026, 12:39

ER

ab = 0?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Creeper300

07 Nov 2010, 13:49

11

3

4,475

by: MathRevolution

24 Nov 2017, 16:25

ER

If n is a positive integer, is n/18 an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

shapla

12 Mar 2016, 10:04

11

4

4,478

by: bumpbot

22 Jun 2024, 19:48

ER

Samuel has a big drawer full of exactly 59 packets, each

805+ (Hard) | Min-Max Problems +2 tags

805+ (Hard) | Min-Max Problems, Probability, Word Problems hide tags

chetan2u

22 Mar 2018, 08:15

23

9

4,478

by: bumpbot

20 Apr 2025, 04:07

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If rs 0, does 1/r + 1/s = 1 (1) rs = 1 (2) s + r = 2.5 Did

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

rxs0005

12 Dec 2010, 09:05

19

7

4,479

by: bumpbot

13 Jan 2026, 00:18

ER

Are all travelers who show symptoms of Kasparian-Yamanaka Syndrome

555-605 (Medium) | Non-Math Related

555-605 (Medium) | Non-Math Related hide tags

Bunuel

16 Jan 2024, 10:30

9

7

4,479

by: bumpbot

09 May 2026, 06:38

ER

x is a positive integer and it is a product of p distinct prime number

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Poor Quality hide tags

ktzsikka

02 Dec 2021, 07:37

12

5

4,480

by: ktzsikka

29 Nov 2021, 20:01

ER

What is the value of integer n if the inequality 30 > n > 9 holds?

Sub 505 (Easy) | Multiples and Factors, Remainders

Sub 505 (Easy) | Multiples and Factors, Remainders hide tags

Bunuel

16 Jul 2015, 01:22

15

9

4,481

by: bumpbot

06 Aug 2020, 07:15

ER

Is d ≠ e ? (1) d > e + 1 (2) d < e + 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

27 Feb 2017, 04:32

22

5

4,481

by: bumpbot

07 Feb 2024, 03:01

ER

If a positive odd integer n has 8 positive factors, how many distinct

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

28 Apr 2022, 02:16

6

1

4,482

by: Nidzo

28 Apr 2022, 03:21

ER

If x is a positive integer, what is the units digit of 567^24*x^y

655-705 (Hard) | Algebra +2 tags

655-705 (Hard) | Algebra, Fractions and Ratios, Remainders hide tags

chetan2u

22 Sep 2016, 23:56

15

12

4,482

by: bumpbot

05 Jul 2023, 14:33

ER

Is m between 35 and 75 ?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

02 Nov 2017, 02:04

2

3

4,482

by: bumpbot

27 Feb 2024, 11:48

ER

Of 300 members in an organization, each German

605-655 (Medium) | Statistics and Sets Problems

605-655 (Medium) | Statistics and Sets Problems hide tags

Kritesh

17 May 2017, 13:13

12

4

4,482

by: bumpbot

10 Jan 2026, 10:20

ER

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

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

MariaVorop

30 Mar 2015, 10:54

26

8

4,483

by: ManifestDreamMBA

21 Mar 2025, 11:33

ER

Does positive integer n have positive integer factors a and b such tha

705-805 (Hard) | Multiples and Factors, Remainders

705-805 (Hard) | Multiples and Factors, Remainders hide tags

Bunuel

02 Dec 2019, 00:16

51

9

4,484

by: bumpbot

03 Aug 2025, 15:48

ER

Is x^2 > y^2? (1) x + y < 0 (2) x - y < 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

mvictor

26 Sep 2014, 10:05

17

5

4,486

by: bumpbot

17 May 2022, 09:20

ER

If x and y are integers, and x + y < 0, is x — y > 0

805+ (Hard) | Absolute Values, Inequalities

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

jabhatta2

08 Apr 2018, 09:41

44

10

4,486

by: bumpbot

25 Nov 2022, 02:34

ER

Did a train arrive at station X no earlier than 4:00 p.m. and no later

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

AbdurRakib

05 Jun 2016, 14:27

9

3

4,487

by: exc4libur

19 Sep 2019, 07:03

ER

A right circular cone has height H and radius R. A small cone is cut o

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

GMATinsight

09 May 2020, 06:50

2

4

4,487

by: Eduardo86

25 May 2020, 03:58

ER

Exactly how many show dogs does Sheila have? (1) Of Sheila’s show dog

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

20 Feb 2021, 08:38

2

4,488

by: Bunuel

15 Mar 2021, 07:45

ER

Is 1/(a - b) < b - a

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

rxs0005

26 Dec 2010, 06:52

5

6

4,488

by: bumpbot

28 Mar 2023, 14:22

ER

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

605-655 (Medium) | Absolute Values, Algebra

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

Bunuel

02 Oct 2017, 00:47

8

4

4,489

by: bumpbot

23 Jul 2021, 09:17

ER

Around the World in 80 Questions (Day 5): Is x < 0 ? (1) 5^x

655-705 (Hard) | Exponents, Inequalities

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

Bunuel

21 Jul 2023, 08:00

70

5

4,489

by: Kinshook

21 Jul 2023, 08:58

ER

How many integers, N, exist such that x < N < x + 12 where N is a mult

655-705 (Hard) | Multiples and Factors, Number Properties

655-705 (Hard) | Multiples and Factors, Number Properties hide tags

Bunuel

28 Aug 2018, 05:24

5

4

4,490

by: nick1816

27 Mar 2020, 14:38

ER

If for integers a, b, c, and d, a + b + c + d = 4

705-805 (Hard) | Arithmetic, Number Properties

705-805 (Hard) | Arithmetic, Number Properties hide tags

yogirb8801

16 May 2013, 08:19

12

3

4,491

by: bumpbot

19 May 2019, 00:36

ER

What is the remainder when 2^n is divided by 10?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

MathRevolution

15 Aug 2018, 09:52

4

6

4,491

by: Kinshook

01 Aug 2020, 23:52

ER

Paint X costs $15 per gallon, and Paint Y costs $20 per

805+ (Hard) | Fractions and Ratios

805+ (Hard) | Fractions and Ratios hide tags

taha1234

08 Jul 2021, 05:25

15

4

4,492

by: bumpbot

27 Jan 2023, 05:31