GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

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Bunuel

25 Oct 2022, 08:11

189

15

89,266

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,346

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,535

by: bb

23 Aug 2026, 13:01

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For integers a, b, x, and y, ab + yb = xy - yb. If a - b = 0 and x + y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

03 Feb 2015, 09:43

59

13

17,052

by: dhruvie

18 Sep 2025, 05:03

ER

The cost C, in dollars of producing x units of a certain commodity is

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

inakihernandez

24 Apr 2016, 11:36

163

16

48,546

by: bumpbot

18 Sep 2025, 04:55

ER

Is |x| > x ? (1) x > |y| (2) x is a non-negative integer

605-655 (Medium) | Absolute Values, Inequalities

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

chetan2u

21 Feb 2017, 07:54

8

7

3,560

by: bumpbot

18 Sep 2025, 04:36

ER

In the figure shown, what is the area of triangular region PRT?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

1, 2

yuvrajsub

22 Jul 2019, 09:41

378

21

76,566

by: bumpbot

18 Sep 2025, 04:28

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If sequence S has 120 terms, what is the 105th term of S?

Sub 505 (Easy) | Sequences

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BrainLab

19 Sep 2015, 14:27

47

12

29,683

by: bumpbot

18 Sep 2025, 03:53

ER

In the xy-plane, at what two points does the graph of y=(x+a)(x+b)

555-605 (Medium) | Coordinate Plane

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1, 2

misterJJ2u

05 Jun 2019, 07:29

945

37

197,377

by: bumpbot

18 Sep 2025, 02:24

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If both x and y are nonzero numbers, what is the value of y/x?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

09 Jan 2014, 06:52

66

17

27,805

by: bumpbot

18 Sep 2025, 02:06

ER

If #x# represents the smallest even integer greater than or equal to x

605-655 (Medium) | Absolute Values +2 tags

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Bunuel

14 Sep 2015, 01:48

29

8

7,318

by: bumpbot

18 Sep 2025, 00:50

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11 New OG Logic-Based DS for GMAT Focus; Analysis of OG22 vs. 2024

655-705 (Hard) | Word Problems

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GMATCoachBen

10 Mar 2024, 22:35

21

3

6,835

by: bumpbot

17 Sep 2025, 23:51

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If x ≤ 4 and y ≥ 10, what is the range of the numbers in the set {5, 8

705-805 (Hard) | Statistics and Sets Problems

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Bunuel

22 Dec 2015, 03:18

14

8

6,567

by: bumpbot

17 Sep 2025, 21:50

Is n the square of an integer?

805+ (Hard) | Number Properties

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Bunuel

23 Jan 2017, 09:29

5

7

2,561

by: bumpbot

17 Sep 2025, 21:48

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If a and b are positive integers, and a < b, does the decimal expansio

705-805 (Hard) | Number Properties

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nislam

05 Feb 2022, 10:38

10

5

1,990

by: bumpbot

17 Sep 2025, 21:29

If the ratio of brown cars to blue cars in a certain parking lot is 2:

705-805 (Hard) | Fractions and Ratios

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Bunuel

25 Jul 2016, 10:10

22

6

6,497

by: Pranavsawant

17 Sep 2025, 21:23

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The price of a certain property increased by 10% in the first year

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

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Bunuel

02 Aug 2023, 01:30

5

4

6,195

by: KarishmaB

17 Sep 2025, 21:22

ER

A family's savings for a month is calculated by subtracting its total

705-805 (Hard) | Arithmetic, Percent and Interest Problems

705-805 (Hard) | Arithmetic, Percent and Interest Problems hide tags

amanvermagmat

21 Jul 2018, 11:03

8

2

3,004

by: bumpbot

17 Sep 2025, 20:36

An increasing sequence consists of 4 negative integers and 6 positive

805+ (Hard) | Sequences

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Bunuel

05 Jan 2022, 03:00

7

2

2,861

by: crystxl

17 Sep 2025, 19:52

A dealer sold good for $X. If Y percent was deducted for taxes and the

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

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

Bunuel

17 Sep 2025, 01:14

5

3

848

by: findingmyself

17 Sep 2025, 17:14

The average of 5 different numbers is 14. What is the average (arithme

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

30 Oct 2019, 21:33

3

7

3,931

by: bumpbot

17 Sep 2025, 16:50

ER

What is the value of positive integer p? (1) 300 multiplied by p is

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

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

Bunuel

28 Jun 2023, 01:30

3

1,454

by: bumpbot

17 Sep 2025, 13:04

ER

What is the value of the two-digit number TU

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

fireinbelly

30 Apr 2013, 05:45

20

6

8,737

by: bumpbot

17 Sep 2025, 12:58

To understand the Population Density (Population divided by area), in

555-605 (Medium) | Word Problems

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Bunuel

17 Sep 2025, 01:15

3

2

761

by: Souradeep17

17 Sep 2025, 11:19

ER

The total volume of a wooden wine container and a plastic wine contain

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

15 Sep 2021, 01:30

7

5

3,035

by: bumpbot

17 Sep 2025, 09:53

ER

Until this coming April, the price of all Albanian products will equal

655-705 (Hard) | Percent and Interest Problems

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

DisciplinedPrep

26 Aug 2020, 23:32

9

3

2,593

by: IanStewart

17 Sep 2025, 08:11

If the Lincoln Library's total expenditure for books, periodicals, and

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

05 Sep 2017, 00:02

16

4

11,182

by: AdarshSambare

17 Sep 2025, 03:41

In a set S={x,12,12,12,14,10,8}, is x positive? 1) The mode of S is gr

605-655 (Medium) | Statistics and Sets Problems

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

TheUltimateWinner

11 Aug 2019, 09:37

7

2

1,806

by: bumpbot

17 Sep 2025, 03:20

ER

In a group of 250 adults, is the number of married (not necessarily to

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

20 Feb 2021, 09:10

10

9

2,483

by: bumpbot

17 Sep 2025, 02:58

ER

If r is a constant a_n = rn for all positive integers n, for how many

505-555 (Easy) | Sequences

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Fedemaravilla

27 Nov 2017, 03:27

51

15

16,752

by: AdarshSambare

17 Sep 2025, 02:46

Chan and Micko drove separate cars along the entire length of a certai

505-555 (Easy) | Distance and Speed Problems

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Bunuel

19 Sep 2022, 08:26

6

2

3,041

by: AdarshSambare

17 Sep 2025, 02:38

ER

If k is a 3 digit positive number, what is the hundred digit

655-705 (Hard) | Fractions and Ratios

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

anilnandyala

09 Nov 2010, 06:19

164

11

22,244

by: bumpbot

17 Sep 2025, 00:37

ER

The top surface area of a square tabletop was changed so that one of

655-705 (Hard) | Geometry, Percent and Interest Problems

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

TheRob

07 Sep 2009, 06:41

165

18

31,715

by: Bunuel

17 Sep 2025, 00:22

ER

If the ratio of the number of teachers to the number of students

605-655 (Medium) | Fractions and Ratios

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Walkabout

06 Dec 2012, 04:50

338

19

57,585

by: bumpbot

16 Sep 2025, 18:02

ER

If n is a positive integer, can it be written as difference

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

goodyear2013

26 Mar 2014, 08:15

6

4

5,758

by: bumpbot

16 Sep 2025, 15:15

If Martin bought two one-pound pieces of same cake in a scheme

555-605 (Medium) | Word Problems

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Bunuel

16 Sep 2025, 04:06

5

3

501

by: Souradeep17

16 Sep 2025, 12:59

How much did it cost, per mile, for the diesel consumed by Truck T for

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

16 Sep 2025, 04:05

3

575

by: Souradeep17

16 Sep 2025, 12:55

ER

2001, the closing price of stock A and stock B are the same.

655-705 (Hard) | Percent and Interest Problems

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

mehdiov

20 Aug 2010, 11:51

81

8

14,573

by: bumpbot

16 Sep 2025, 10:40

ER

A set contains the following 5 numbers: a^2, a^5, a, a/2, a/5. Is the

805+ (Hard) | Statistics and Sets Problems

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1, 2

akhil911

25 Mar 2016, 04:55

175

26

23,167

by: bumpbot

16 Sep 2025, 09:59

Set S consist of the values 11, -9, 100, 0, x, and y. if x not equal

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

15 Jul 2018, 21:41

10

3

3,602

by: bumpbot

16 Sep 2025, 09:35

ER

In the sequence of nonzero numbers t1, t2, t3, , tn, , tn+1

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

quantum

18 Jun 2008, 10:23

59

10

34,098

by: bumpbot

16 Sep 2025, 09:23

ER

If n is a positive integer, what is the units digit of n^28? (I) n is

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Russ19

28 Apr 2020, 09:08

11

3

1,727

by: bumpbot

16 Sep 2025, 08:46

ER

In a certain sequence, each term, starting with the 3rd term

805+ (Hard) | Sequences

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mun23

27 Mar 2013, 22:53

118

16

30,041

by: bumpbot

16 Sep 2025, 07:36

ER

If xy 0, is x^y > 0 ?

655-705 (Hard) | Exponents +2 tags

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Bunuel

20 Jul 2014, 11:23

63

11

12,157

by: bumpbot

16 Sep 2025, 06:24

ER

At a certain department store present-wrapping counter, each

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

chiragr

20 Oct 2013, 09:56

93

7

16,800

by: bumpbot

16 Sep 2025, 05:08

ER

How many hours does it take 12 machines with identical production rate

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

17 Dec 2014, 07:58

17

13

9,893

by: bumpbot

16 Sep 2025, 03:43

Truckers Jack and Dave drove their truck along a straight route.

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

15 Sep 2025, 01:03

2

3

659

by: RDM42

15 Sep 2025, 20:50

If x and y are positive integers, is x^17 - 2*y^3 odd?

705-805 (Hard) | Multiples and Factors +2 tags

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Bunuel

15 Dec 2020, 01:15

10

6

2,518

by: bumpbot

15 Sep 2025, 18:06

At a school, one-fourth of the teachers are male and half of the teach

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

15 Sep 2025, 01:02

3

2

611

by: Souradeep17

15 Sep 2025, 18:05

ER

What is the units digit of the non-negative integer y?

705-805 (Hard) | Fractions and Ratios, Number Properties

705-805 (Hard) | Fractions and Ratios, Number Properties hide tags

Bunuel

25 Nov 2014, 08:30

14

11

5,394

by: bumpbot

15 Sep 2025, 16:13

ER

If m and n are positive integers such that m > n, what is the remainde

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

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

Bunuel

06 Apr 2015, 07:55

30

8

10,385

by: bumpbot

15 Sep 2025, 14:00

ER

At a certain university, all employees can be categorized as either pr

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

18 May 2017, 00:18

33

8

7,806

by: bumpbot

15 Sep 2025, 13:58

ER

How many different prime factors does x have?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Harley1980

13 Apr 2015, 00:57

12

5

4,071

by: bumpbot

15 Sep 2025, 13:11