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

78,764

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

856

24

188,548

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

487,977

by: bb

29 Aug 2025, 13:27

ER

Is x > y? (1) x - 5 > y - 5 (2) x^2 > xy

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kumar83

05 Nov 2020, 06:49

4

5

2,860

by: bumpbot

20 Jan 2021, 10:45

ER

If n is an integer and k = 9.87 X 10^n, what is the value of

555-605 (Medium) | Exponents, Inequalities

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

fozzzy

12 Feb 2024, 14:01

35

12

6,333

by: Bunuel

13 Feb 2024, 01:02

ER

If k is a positive integer, then 20k is divisible by how man

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

hellzangl

22 Aug 2013, 04:17

264

16

56,077

by: bumpbot

23 Nov 2025, 08:47

ER

In a group of 25 people, only three languages are spoken – English, Sp

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

bsahil

21 Aug 2013, 23:27

76

14

21,034

by: bumpbot

19 Dec 2025, 06:17

ER

The figure above shows the shape of a brick patio. If arc AB

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Asifpirlo

22 Aug 2013, 02:28

3

3,135

by: fameatop

22 Aug 2013, 03:16

ER

Two cyclists are racing up a mountain at different constant

655-705 (Hard) | Distance and Speed Problems

655-705 (Hard) | Distance and Speed Problems hide tags

Asifpirlo

21 Aug 2013, 18:08

37

7

12,456

by: Bunuel

20 Mar 2026, 03:14

ER

A CEO is building an extra-wide garage in which to park his

Poor Quality

Poor Quality hide tags

Asifpirlo

21 Aug 2013, 17:56

2

3,612

by: fameatop

22 Aug 2013, 03:10

ER

Is the triangle depicted above isosceles?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Asifpirlo

22 Aug 2013, 01:58

14

10

7,508

by: bumpbot

13 Jul 2023, 20:47

ER

Is rs = rx − 2 ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Asifpirlo

21 Aug 2013, 17:51

3

4,240

by: mvictor

17 Mar 2016, 18:44

ER

The figure above shows the shape of a flowerbed. If arcs WZ

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Asifpirlo

22 Aug 2013, 03:09

1

3

4,676

by: bumpbot

16 Oct 2016, 18:14

ER

If k is an integer, is 2^k + 3^k = m ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

danzig

21 Aug 2013, 12:26

6

4,288

by: bumpbot

07 Jan 2025, 08:19

ER

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

jrawls

05 Nov 2020, 06:34

10

7

4,368

by: bumpbot

06 Oct 2020, 20:27

ER

In the xy-plane , line l intersects a circle with center

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

innocous

17 Jul 2014, 11:58

22

8

7,962

by: bumpbot

06 Aug 2022, 07:30

ER

If 2xy + z = 9, what is the value of the positive integer z?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Stiv

19 Aug 2013, 09:36

13

7

7,410

by: bumpbot

24 Dec 2023, 11:33

ER

A rectangular room has dimensions of the four walls as " x "

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

innocous

19 Aug 2013, 03:09

3

6

3,275

by: mikeyg51

13 Oct 2016, 16:03

ER

Set D is a new set created by combining all the terms of Set

705-805 (Hard) | Statistics and Sets Problems

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

sophietrophy

01 Mar 2024, 01:45

15

12

6,027

by: DmitryFarberMPrep

01 Mar 2024, 00:07

ER

If AB=3, what is the shortest side of triangle ABC?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

blueseas

18 Aug 2013, 12:05

37

12

17,295

by: bumpbot

06 Apr 2023, 00:52

ER

If n is a positive integer and the tens digit of n+8 is 6, w

805+ (Hard) | Fractions and Ratios, Number Properties

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

fozzzy

18 Aug 2013, 05:31

10

13

6,723

by: bumpbot

19 Apr 2024, 16:13

ER

Is |xy| > x^2*y^2 ? (1) 0 < x^2 < 1/4 (2) 0 < y^2 < 1/9

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

DelSingh

17 Aug 2013, 12:51

233

19

33,357

by: bumpbot

26 Feb 2025, 07:18

A pencil costs $3 and a pen costs $7. If pens and pencils

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Poor Quality hide tags

innocous

16 Aug 2013, 08:36

3

2

3,219

by: zerosleep

19 Aug 2013, 07:21

ER

Trains A and B travel at the same constant rate in opposite

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

2013gmat

15 Aug 2013, 11:04

152

17

33,247

by: bumpbot

15 Jun 2025, 02:08

ER

If each customer at the outdoor movie last night came in a c

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

DelSingh

15 Aug 2013, 07:55

45

7

12,221

by: bumpbot

08 Jun 2025, 16:10

ER

If m and n are positive integers, is 3√m < √(m+n) ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

irda

15 Aug 2013, 05:06

5

2

3,091

by: bumpbot

12 May 2019, 19:52

ER

If ab > 0, does (a - 2)(b - 2) = 4 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

WoundedTiger

15 Aug 2013, 02:22

11

6

4,976

by: bumpbot

25 Feb 2025, 14:01

ER

If x and y are negative numbers, is x<y?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

nitin6305

21 May 2023, 01:25

91

9

19,724

by: bumpbot

27 Sep 2024, 06:08

ER

How many numbers of this sequence of 342 numbers are odd?

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Asifpirlo

10 Aug 2013, 12:30

5

6

3,618

by: bumpbot

23 Jun 2020, 09:48

ER

Is x+y equal to 3.6 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Asifpirlo

10 Aug 2013, 12:02

1

10

3,605

by: saswata4s

10 Mar 2017, 09:58

ER

The sides AC and BC of ∆ABC are parallel, respectively, to

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Asifpirlo

11 Dec 2013, 02:40

7

3,796

by: bumpbot

26 Sep 2023, 02:22

The average weight of the students

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Gian

10 Aug 2013, 05:55

1

3

4,568

by: maaadhu

10 Aug 2013, 06:09

ER

If M=P*Q, where P and Q are different positive integers,

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

yaj

08 Aug 2013, 11:13

22

5

5,925

by: bumpbot

25 Apr 2019, 12:35

ER

The possible arguments of the functions f(x,y) and g(x,y) are x=0 or 1

655-705 (Hard) | Graphs and Illustrations

655-705 (Hard) | Graphs and Illustrations hide tags

Asifpirlo

06 Aug 2013, 15:29

29

8

6,739

by: bumpbot

15 May 2024, 13:24

ER

Is a < 0 ? (1) a^3 < a^2 + 2a (2) a^2 > a^3

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2

bagdbmba

19 Jun 2019, 07:14

37

22

9,935

by: bumpbot

03 Oct 2024, 23:48

Jenifer, David and Steve are children of Mrs. Noris.

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Poor Quality hide tags

Asifpirlo

05 Aug 2013, 11:35

1

3

3,061

by: Asifpirlo

05 Aug 2013, 11:34

ER

Is 2ab > ab ?

655-705 (Hard) | Exponents, Inequalities

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

summer101

14 Apr 2018, 00:41

18

4

6,705

by: bumpbot

01 Jun 2023, 02:21

ER

What is the units digit of the number z?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

summer101

05 Aug 2013, 05:23

36

8

7,206

by: bumpbot

15 Mar 2025, 08:16

ER

Alan and Peter are cycling at different constant rates on a

555-605 (Medium) | Distance and Speed Problems

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

summer101

11 May 2015, 03:34

33

10

10,196

by: bumpbot

13 May 2024, 01:01

ER

What is the perimeter of PQRS ? (1) x = 30 degree (2) w= 45 degree

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

Asifpirlo

05 Aug 2013, 03:15

319

29

48,259

by: bumpbot

21 Jan 2025, 07:38

A village is under attacked by a deadly virus species.

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Asifpirlo

05 Aug 2013, 01:14

14

4

4,502

by: bumpbot

25 Mar 2026, 14:57

ER

ax + by=10, ay + bx=12. which one is greater here, x or y ?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

1, 2

Asifpirlo

05 Aug 2013, 00:56

61

21

12,202

by: bumpbot

08 Apr 2022, 16:46

ER

The figure shows all the available routes between stations A and C

655-705 (Hard) | Geometry, Inequalities

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

Asifpirlo

15 Mar 2018, 23:22

6

3

3,497

by: bumpbot

15 Mar 2018, 23:18

ER

If k is a positive constant and y = |x - k| - |x + k|, what

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12bhang

27 Feb 2014, 06:03

65

11

23,166

by: MathRevolution

21 Nov 2015, 10:25

Is x negative? (1) x^2 is positive. (2) x^3 is non-positive.

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kumar23badgujar

01 Oct 2023, 02:24

15

5

3,958

by: bumpbot

07 Mar 2023, 08:08

ER

If a, b, c are different positive integers, and a^2+b^2 = c^

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

mau5

03 Aug 2013, 06:56

21

5

5,723

by: bumpbot

03 Jan 2026, 04:14

ER

Mr. Alex usually starts at 9:00am and reaches his office jus

705-805 (Hard) | Distance and Speed Problems

705-805 (Hard) | Distance and Speed Problems hide tags

Asifpirlo

02 Aug 2013, 13:11

41

14

11,121

by: bumpbot

01 Feb 2025, 04:30

A pagoda “P” is situated on an apex of a hill at a height of

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Asifpirlo

02 Aug 2013, 11:48

7

10

3,594

by: bumpbot

03 Mar 2026, 05:05

ER

Is p + q = 0 ?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Asifpirlo

09 Aug 2013, 02:51

17

6

3,998

by: bumpbot

25 Jan 2026, 00:22

For a given triangle with sides x,3x and 24, what is the

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

mau5

01 Aug 2013, 03:37

17

10

3,538

by: bumpbot

14 Sep 2023, 10:46

ER

Is (a - k)/(b - k) > (a + k)/(b + k) ? (1) a > b > k (2) k > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

bagdbmba

31 Jul 2013, 10:50

33

12

7,064

by: bumpbot

07 Oct 2024, 20:22

ER

If x is a positive integer, is √√x an integer? (1) x is the square of

505-555 (Easy) | Number Properties, Roots

505-555 (Easy) | Number Properties, Roots hide tags

danzig

21 May 2021, 05:12

8

3

3,530

by: BelalHossain046

30 Mar 2019, 12:07

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

8,557

by: bumpbot

03 Apr 2023, 02:44