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

176

15

78,848

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

856

24

188,598

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

488,044

by: bb

29 Aug 2025, 13:27

ER

Given that m, p and k are integers. Is m equals to p?

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

houston1980

16 May 2021, 11:22

5

3

1,470

by: cuddywifter

19 May 2021, 19:39

ER

If ab 0, is |a^b| = a^b? (1) |a| = a (2) |b| = b

555-605 (Medium) | Absolute Values, Exponents

555-605 (Medium) | Absolute Values, Exponents hide tags

Bunuel

05 Jun 2023, 06:45

2

1

1,470

by: HoudaSR

11 Jun 2023, 14:14

ER

At a certain school 60% of the students are studying French and 70%

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

21 Nov 2024, 01:30

3

2

1,470

by: ybhatt32

21 Nov 2024, 08:22

ER

What is the value of a+b+c? (I) c is the average of a, b and c.

555-605 (Medium) | Algebra, Statistics and Sets Problems

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

chetan2u

29 Oct 2019, 05:50

1

2

1,469

by: liolash

29 Oct 2019, 18:20

ER

x and y are integers such that xy < 0. If x^2 – y^2 = 0, what is the

705-805 (Hard) | Algebra, Exponents

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

Bunuel

26 Jan 2022, 07:30

2

1

1,469

by: truplayer257

26 Jan 2022, 20:25

ER

Amy reached from her home to her aunts place in 75 minutes. What is

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

14 Jun 2022, 09:15

1

1,469

by: ThatDudeKnows

14 Jun 2022, 19:37

ER

If s and t are positive integers, is s + t even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

06 Dec 2016, 07:08

2

1,468

by: yezz

07 Dec 2016, 09:21

ER

If G is a function defined in the positive integers, such that G(k) is

655-705 (Hard) | Algebra, Functions and Custom Characters

655-705 (Hard) | Algebra, Functions and Custom Characters hide tags

fskilnik

24 Feb 2019, 14:17

3

2

1,468

by: fskilnik

25 Feb 2019, 12:46

ER

In the figure above, does r = t? (1) The length of AB plus the length

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

02 Mar 2022, 04:30

1

1,468

by: PyjamaScientist

02 Mar 2022, 08:32

ER

If x and y are positive integers and x is odd, is xy even?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

06 Jan 2023, 09:15

3

1,468

by: Bunuel

09 Feb 2025, 11:01

ER

If x < -1, is x+y/x+1 < x-y/x-1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

BrentGMATPrepNow

10 Nov 2020, 09:07

1

3

1,467

by: BrentGMATPrepNow

10 Nov 2020, 17:34

ER

What percent is x of y? (1) x = 3y (2) x y = 6

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

Bunuel

16 Mar 2022, 03:30

1

1,467

by: Sr1994

16 Mar 2022, 07:22

ER

If a is a negative integer, is |a| + |b| an even integer?

705-805 (Hard) | Absolute Values +2 tags

705-805 (Hard) | Absolute Values, Exponents, Number Properties hide tags

Bunuel

19 Jan 2023, 02:30

6

3

1,467

by: Maria240895chile

27 Jan 2023, 06:08

ER

People in a society read three kinds of newspapers, newspaper A or new

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

04 Feb 2025, 01:30

10

6

1,467

by: Spandam

26 Feb 2025, 08:34

ER

If x + y = 2p and x − y = 2q, what is the value of (p + q)? (1) y = 8

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

29 Oct 2018, 04:58

2

1,466

by: ankitnoida2018

02 Nov 2018, 01:15

ER

On Wednesday morning a fortune cookie machine ran continuously at a un

Sub 505 (Easy) | Work and Rate Problems

Sub 505 (Easy) | Work and Rate Problems hide tags

Bunuel

17 Oct 2019, 23:52

1

1,466

by: DavidTutorexamPAL

18 Oct 2019, 01:55

ER

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

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

GKomoku

08 Apr 2020, 07:57

2

1,466

by: gurmukh

08 Apr 2020, 10:04

ER

If a and b are integers, is a^2 − b^2 even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

26 May 2021, 02:00

2

1

1,466

by: Showmeyaa

26 May 2021, 02:18

ER

A sequence an defined such that an = a(n - 1) - a(n - 2), where n is

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

Bunuel

21 Jan 2024, 01:37

3

5

1,466

by: Bunuel

21 Jan 2024, 01:37

ER

The elements of Set X are defined by the formula...

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATUser1928843

26 Jun 2022, 13:34

5

3

1,466

by: bumpbot

29 Aug 2024, 22:07

If x is even and b is odd, is

805+ (Hard) | Exponents, Number Properties

805+ (Hard) | Exponents, Number Properties hide tags

gmatophobia

05 May 2023, 11:25

8

5

1,466

by: gmatophobia

28 Jul 2025, 22:44

ER

If x + y = z where x, y and z are positive integers, what is the ratio

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

Bunuel

01 Jan 2018, 01:33

1

1,465

by: niks18

01 Jan 2018, 04:57

ER

R1 and R2 are two rectangular tanks. Which one of them has a greater

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Princ

11 Apr 2018, 09:05

1

5

1,465

by: Princ

23 Apr 2018, 23:47

If b is a positive number, is a^2 2a + b > 0?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

ChandlerBong

05 Nov 2023, 11:36

3

2

1,465

by: gmatophobia

18 Apr 2023, 14:33

ER

Is ab < 1/ab? (1) ab > 0 (2) b < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

09 Jun 2023, 08:15

1

4

1,465

by: Gauravji21

10 Jun 2023, 20:59

ER

There are 33 students in a certain class, 18 are girls. If 23 of the

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

17 Oct 2022, 01:30

2

1,465

by: bumpbot

07 Jul 2025, 22:38

ER

If x, y, and z are consecutive integers and x < y < z, is y an even

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

06 Jan 2023, 02:30

5

3

1,465

by: bumpbot

06 Jan 2026, 05:58

ER

(x - y/3) - (y - x/3) = (1) x – y = 9 (2) x + y = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

12 Jul 2019, 02:12

2

1,464

by: Kinshook

12 Jul 2019, 13:15

ER

What is the radius of the circle above with center O?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

29 Oct 2019, 02:25

2

3

1,464

by: ayushi1219

29 Oct 2019, 05:05

ER

What is the value of the integer n? (1) n^2+ 3n = 4 (2) (n + 3)^n = 1

705-805 (Hard) | Algebra, Exponents

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

Bunuel

02 Feb 2023, 06:00

2

6

1,464

by: ChanSu

02 Feb 2023, 09:21

ER

Is nm^2 + nm - 12n = 0? (1) m^2 = 16 (2) m = -4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

1992Sonal

25 Feb 2024, 21:29

4

1,464

by: Kinshook

29 Feb 2024, 22:17

ER

If u, v, and w are the lengths of the two sides and a diagonal of a pa

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

25 Oct 2016, 23:12

1

2

1,463

by: bumpbot

30 Jan 2018, 01:39

ER

If p, q, x and y are positive numbers, is px > qy? (1) p > q (2) x > y

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

26 May 2022, 03:16

2

1

1,463

by: BrentGMATPrepNow

26 May 2022, 08:10

ER

What is the numerical value of the second term in the following sequen

Sub 505 (Easy) | Sequences

Sub 505 (Easy) | Sequences hide tags

Bunuel

01 Jun 2022, 06:00

1

1,463

by: JerryAtDreamScore

08 Jun 2022, 11:48

ER

What is the value of x ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Carcass

29 Sep 2022, 02:26

3

1,463

by: Singhalatul87

09 Oct 2022, 10:57

ER

If x is an integer greater than 1, what is the remainder when x^4 is

705-805 (Hard) | Remainders

705-805 (Hard) | Remainders hide tags

Bunuel

30 Jan 2024, 02:30

5

2

1,463

by: Shubhradeep

30 Jan 2024, 12:44

ER

What is the value of x? (1) x^2/3 = x/81 (2) x > 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

06 Dec 2018, 05:56

5

1,462

by: globaldesi

09 Dec 2018, 05:08

ER

If x is a non-zero integer, what is the value of x?

605-655 (Medium) | Absolute Values, Algebra

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

chetan2u

11 Dec 2019, 00:54

4

2

1,462

by: nick1816

11 Dec 2019, 15:57

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

07 Feb 2023, 02:30

2

1,462

by: Sristishaw

12 Feb 2023, 07:55

ER

If a^2 is an integer and (a^6-a^4-b-1) =10 , what are the values of

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

30 Dec 2022, 12:16

6

3

1,462

by: Bunuel

06 Mar 2024, 00:57

ER

A large-size battery pack contains more numbers of batteries and costs

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

22 Oct 2018, 00:21

2

1,461

by: Archit3110

22 Oct 2018, 04:33

ER

Is abc at least 4?

655-705 (Hard) | Algebra, Inequalities

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

fskilnik

08 Feb 2019, 08:02

3

1,461

by: fskilnik

08 Feb 2019, 14:26

ER

During a 5 year period, the profits of Company Z changed by what

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

stowaway

10 Jan 2021, 23:29

3

1,461

by: rocky620

11 Jan 2021, 05:41

ER

If ab ≠ 0, is a^4 + 1/a^2 + a^{−2} = 1 + b^{−2}/b^{−2} + b^{−4}? 1) a

655-705 (Hard) | Algebra, Exponents

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

Russ19

18 Apr 2021, 01:34

3

2

1,461

by: Kinshook

18 Apr 2021, 02:34

ER

John is driving from Town A to Town B. What is his average speed over

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

Bunuel

04 Mar 2024, 02:30

1

2

1,461

by: DhruvBadaya

04 Mar 2024, 10:38

ER

Is m>n? (1) |m+n| < |m| + |n| (2) |m| > |n| + 1

605-655 (Medium) | Absolute Values, Inequalities

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

Bunuel

02 Jun 2021, 03:00

6

2

1,460

by: Niveditha28

02 Jun 2021, 04:02

ER

How many of the numbers a, b, and c are positive if each of these

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Sisrikhya

06 Aug 2023, 19:09

6

4

1,460

by: Bunuel

12 Aug 2023, 03:18

ER

What is the remainder when k^2 is divided by 8?

605-655 (Medium) | Remainders

605-655 (Medium) | Remainders hide tags

Bunuel

06 Jun 2023, 04:15

6

3

1,460

by: bumpbot

22 May 2025, 21:04

ER

Is the integer b divisible by 6 ?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

Bunuel

24 Oct 2019, 01:00

1

1,459

by: nick1816

24 Oct 2019, 02:25

ER

At a certain bakery all muffin are priced equally and all donuts are p

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

TheUltimateWinner

20 Apr 2021, 11:08

2

1,459

by: Showmeyaa

20 Apr 2021, 22:36