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

79,081

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

857

24

188,731

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

488,296

by: bb

29 Aug 2025, 13:27

ER

If A, B & C can build a wall in 4 hours,working together,

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innocous

02 Sep 2013, 12:39

17

11

7,801

by: Amateur

30 Dec 2013, 15:21

ER

If a, b & c are integers, is abc odd?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Abhi077

27 Sep 2018, 07:50

3

5

3,616

by: bumpbot

29 May 2024, 19:49

ER

If a_n= 0.5* a_n+1, what is the value of a_7

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

alphonsa

02 Aug 2014, 01:56

19

2

4,170

by: bumpbot

05 Apr 2026, 10:46

ER

If a_n = a_1 + (n - 1)d, what is the value of a_51?

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

Bunuel

03 Apr 2018, 21:27

2

1,802

by: kunalcvrce

03 Apr 2018, 21:58

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If a^x*b^y = 200, where a, b, x, y are positive integers, x + y = ?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

Bunuel

14 Jun 2018, 21:13

5

6

2,181

by: Bob2018

15 Jun 2018, 09:42

ER

If a^x = b^y where a, b are positive integers and x and y are non-nega

805+ (Hard) | Exponents, Multiples and Factors

805+ (Hard) | Exponents, Multiples and Factors hide tags

Bunuel

10 May 2022, 01:30

10

2

1,972

by: GmatPoint

02 Jun 2022, 01:40

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If a^n ≠ 0 and n is a positive integer, is n odd?

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

jellybean23

20 Oct 2013, 04:43

17

4

4,990

by: bumpbot

13 Apr 2024, 13:01

ER

If a^m = b^n and if a ≠ b ≠ m ≠ n, what is the value of a + b + m + n?

655-705 (Hard) | Algebra, Exponents

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

dkverma

27 Jul 2015, 15:01

12

5

5,459

by: bumpbot

06 Feb 2022, 19:37

ER

If a^b = c, what is the units digit of c?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

21 Oct 2019, 21:28

16

13

3,272

by: bumpbot

02 Mar 2025, 10:55

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If a^b = 289, what is the value of a-b? (1) b is not equal to 1

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

santorasantu

24 Sep 2018, 14:20

8

2

1,377

by: bumpbot

17 Jan 2026, 04:08

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If a^6-b^6=0 what is the value of a^3+b^3?

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

gmat6nplus1

29 Dec 2013, 07:29

32

7

7,430

by: bumpbot

17 Jul 2025, 03:58

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If a^5b^6c^7 > 0, is ab > 0 ? (1) b < 0 (2) c > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 Jan 2020, 05:17

1

3

1,520

by: bumpbot

19 Feb 2023, 13:16

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If a^5b^3c^6 < 0, is abc < 0?

605-655 (Medium) | Algebra, Inequalities

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

fozzzy

08 Jul 2013, 00:43

8

4

3,625

by: yezz

07 Dec 2016, 09:27

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If a^5+7a+2b+b^2 is even and a and b are integers, is

655-705 (Hard) | Algebra, Number Properties

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

chetan2u

08 Feb 2018, 19:28

3

2

1,495

by: amanvermagmat

08 Feb 2018, 22:50

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If a^5*b^6*c^7 > 0, is a*b^3*c^5 <0 ? (1) b < 0 (2) c > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

13 Jul 2023, 01:30

4

1,839

by: bumpbot

30 Aug 2025, 21:06

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If a^5*b^6*c^7 > 0, is a*b^3*c^5 <0 ? (1) b < 0 (2) c > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

03 Sep 2020, 02:14

5

8

3,038

by: bumpbot

21 Oct 2021, 09:17

ER

If a^5 ≥ −32 and a is an integer, what is the value of a?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

18 Mar 2020, 09:12

7

5

2,527

by: minustark

14 Apr 2020, 15:27

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If a^4>b^4, is a>b?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

BillyZ

19 Feb 2017, 01:18

23

17

4,303

by: bumpbot

16 Nov 2023, 13:19

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If a^3b^4c^5 < 0, is abc < 0? (1) a < 0 (2) b > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

30 Mar 2023, 04:45

2

1,973

by: SaquibHGMATWhiz

12 Apr 2023, 05:30

ER

If a^3*b^4*c^5<0, is abc<0?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

MathRevolution

25 Nov 2016, 02:25

4

2,497

by: bumpbot

04 Jun 2025, 16:00

ER

If a^3*b^4*c^5 < 0, is ab^2 < 0? (1) a < 0 (2) c > 0

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

19 Mar 2023, 09:30

1

948

by: Afn24

19 Mar 2023, 10:21

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If a^3, b^3, and c^3 are all positive, does a^2 = b/c^3?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

30 Oct 2019, 01:21

1

1,373

by: Archit3110

30 Oct 2019, 07:35

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If a^2b^2c^3 = 4500. Is b+c = 7 ?

805+ (Hard) | Exponents, Number Properties

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

GMATBaumgartner

26 Aug 2018, 21:29

193

13

15,389

by: bumpbot

20 Nov 2024, 12:24

ER

If a^2b^2c^3 = 4500. Is b + c = 7?

805+ (Hard) | Algebra +2 tags

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

MichelleSavina

22 Jan 2011, 01:11

50

15

11,026

by: bumpbot

12 Oct 2022, 12:34

ER

If a^2=b, is the value of a between 0 and 1?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

cv3t3l1na

01 Dec 2012, 05:59

14

8

5,452

by: bumpbot

30 Jun 2021, 13:58

ER

If a^2 is not equal to b^2, what is the value of a-b - a^2 - b^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

23 Mar 2022, 08:00

1

1,246

by: Nefertiti9

23 Mar 2022, 11:27

If a^2 is not equal to b^2, what is the value of

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

WM88

11 Nov 2019, 11:17

4

3,962

by: rajatchopra1994

03 Aug 2021, 19:06

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

1,463

by: Bunuel

06 Mar 2024, 00:57

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If a^2 and b^2 are integers and (a^4 – a^2 + 4b^2 – 6)^(1/2) =

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

siddharthkapoor

28 Oct 2019, 22:58

13

5

2,195

by: bumpbot

03 Aug 2023, 07:57

ER

If a^2 − b = n, what is the value of a? (1) n + b = 4 (2) b = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Nov 2018, 00:07

2

1,103

by: Arushit

01 Nov 2018, 23:50

ER

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

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

11 Sep 2023, 05:00

1

4

971

by: BrushMyQuant

11 Sep 2023, 22:11

ER

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

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

20 Mar 2022, 02:56

3

2,484

by: bumpbot

01 Apr 2025, 07:25

ER

If a^2 = b^2 = 25, what is the value of a + b? (1) a - b = 0 (2) ab =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Mar 2021, 01:30

9

5

4,068

by: bumpbot

24 Mar 2022, 20:56

ER

If a^2 + b^2 = 41, what is the value of (a − b)^2 ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

05 May 2021, 05:00

4

3,264

by: bumpbot

06 Aug 2023, 16:37

ER

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

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

30 Oct 2018, 04:16

2

2,133

by: RusskiyLev

05 Dec 2019, 09:40

ER

if a^2 * a^b = a^z ,

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

GMATBusters

11 Jul 2020, 19:16

19

16

2,514

by: Kinshook

14 Jul 2020, 10:17

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

3,740

by: bumpbot

03 Apr 2023, 04:58

ER

If a^{2/3} - b^{2/3} = 12, then \sqrt[3]{a} + \sqrt[3]{b} = ?

805+ (Hard) | Algebra, Roots

805+ (Hard) | Algebra, Roots hide tags

Bunuel

06 Nov 2014, 09:02

45

9

11,457

by: bumpbot

24 Feb 2025, 07:45

ER

If a^(1/2)=b, what is the value of integer b?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

chetan2u

11 Oct 2019, 19:26

24

6

4,813

by: bumpbot

12 Feb 2025, 09:34

ER

If a^(1/2) is an integer, what is the value of a?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

30 Oct 2019, 23:12

1

2

1,331

by: Archit3110

31 Oct 2019, 00:54

ER

If a wire 27 meters long is cut into three pieces of three

555-605 (Medium) | Arithmetic

555-605 (Medium) | Arithmetic hide tags

mydreammba

01 Feb 2012, 08:05

44

16

21,980

by: bumpbot

11 Aug 2024, 09:12

ER

If a typist at Company X can type 75 words per a minute, how many mist

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

31 Jul 2022, 06:15

1

1,414

by: rajchotu02

31 Jul 2022, 08:09

ER

If a truck averages 20 miles per gallon of gasoline on the first third

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

28 Feb 2025, 01:30

1

728

by: ManifestDreamMBA

28 Feb 2025, 01:48

ER

If a triangle is inscribed in a circle such that a length of a side of

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

roastedchips

06 Jul 2017, 08:06

10

7

3,279

by: Pastillita

08 Mar 2022, 13:48

ER

If a triangle inscribed in a circle has area 40, what is the

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

rxs0005

22 Mar 2011, 09:46

16

15

7,038

by: bumpbot

13 Nov 2023, 18:20

ER

If a triangle has one side of 3 cm and another side of 4 cm, how long

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

14 Feb 2016, 04:16

6

3

7,303

by: bumpbot

20 Sep 2022, 11:21

ER

If a triangle has angle measures of x, y, and z, what is the value of

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

02 Feb 2022, 05:30

1

1,185

by: Charli08

05 Feb 2022, 04:38

If a train traveled a route of 1,000 kilometers

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

bhargavhhhhhhhh

12 Apr 2025, 00:19

7

1

1,603

by: Dereno

12 Apr 2025, 01:05

ER

If a total of 84 students are enrolled in two sections of a calculus

Sub 505 (Easy) | Overlapping Sets, Word Problems

Sub 505 (Easy) | Overlapping Sets, Word Problems hide tags

Bunuel

22 Dec 2014, 08:48

17

11

11,700

by: bumpbot

22 Oct 2023, 11:38

ER

If a total of 55 books were sold at a community book fair and if each

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

08 Jun 2022, 07:30

1

1,091

by: sanjitscorps18

08 Jun 2022, 08:02