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

178

15

78,920

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

188,635

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

488,125

by: bb

29 Aug 2025, 13:27

What is the ratio x:y?

555-605 (Medium) | Algebra, Fractions and Ratios

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

amanvermagmat

15 Feb 2018, 23:20

1

2

1,482

by: pushpitkc

17 Feb 2018, 07:08

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If u and v are positive integers, is u + v even?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

30 Oct 2019, 02:11

1

1,482

by: lacktutor

30 Oct 2019, 02:28

ER

Is ab(b - 4) a positive integer?

505-555 (Easy) | Algebra, Number Properties

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

Bunuel

30 Oct 2019, 02:17

1

2

1,482

by: BrentGMATPrepNow

30 Oct 2019, 07:32

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x is a positive integer. What is the value of x ? (1) LCM of x and 26

655-705 (Hard) | Multiples and Factors

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

Bunuel

26 Jan 2022, 08:00

3

1

1,482

by: Kinshook

30 Jan 2022, 06:40

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What contains more calories: a gram of refined wheat.

655-705 (Hard) | Fractions and Ratios

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

NextstopISB

18 Apr 2025, 10:23

4

3

1,482

by: Bunuel

25 Sep 2025, 01:58

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How much is 30 percent of a certain number? (1) 10 percent of the num

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

30 Jun 2021, 02:00

1

1,481

by: Deeptisingh1995

30 Jun 2021, 05:41

ER

Was the month in which Mona was hired January?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

10 Nov 2022, 09:34

5

1

1,481

by: SaquibHGMATWhiz

11 Nov 2022, 02:21

ER

A bag contains balls, of which some are red and the others are blue.

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

30 Aug 2023, 01:30

3

1

1,481

by: gmatophobia

30 Aug 2023, 12:35

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Is ab + cd > 0 ? (1) ac + bd 0 (2) bc + ad 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

08 Jan 2023, 02:43

1

2

1,481

by: bumpbot

03 Jul 2024, 23:08

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Customers can use a manufacturer's coupon and a store coupon to obtain

555-605 (Medium) | Overlapping Sets

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Bunuel

31 Jul 2024, 08:45

1

1,481

by: siddhantvarma

19 Sep 2024, 10:55

ER

The general formula for the profit per unit of a product is defined as

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

12 Jul 2019, 00:40

1

1,480

by: Archit3110

12 Jul 2019, 07:14

ER

Is the standard deviation of salaries of teachers in school A greater

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

26 May 2021, 08:30

1

1,480

by: GMATWhizTeam

26 May 2021, 09:11

ER

In a survey of 120 people, how many own an automobile?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

16 Mar 2023, 01:30

2

1,480

by: whalenz

19 Mar 2023, 06:39

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If x and y are non-negative integers, is 11 a factor of x + y ?

555-605 (Medium) | Multiples and Factors

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

Bunuel

01 Jun 2023, 01:30

2

1

1,480

by: zhanbo

01 Jun 2023, 02:07

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If a 0, is b < a < c ? (1) b < |a| < c (2) |b| < |a| <|c|

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

25 Nov 2022, 11:03

2

3

1,480

by: bumpbot

18 Dec 2023, 12:12

ER

If the product of x and y is -15, what is the sum of x and y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

09 Sep 2022, 01:30

3

2

1,480

by: bumpbot

20 Aug 2024, 14:52

ER

An automated manufacturing unit employs N experts. Their average month

Poor Quality

Poor Quality hide tags

Nanobotstv

28 Dec 2018, 06:33

1

1,479

by: chetan2u

28 Dec 2018, 09:06

ER

What is the area of rectangle ABCD ? (1) Side B is 7 units long. (2) T

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

05 Mar 2019, 05:23

1

4

1,479

by: rishab0507

13 Jul 2019, 13:33

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If x, y, and z are positive integers, is x + y divisible by 2?

505-555 (Easy) | Multiples and Factors

505-555 (Easy) | Multiples and Factors hide tags

Bunuel

29 Mar 2023, 02:45

2

1,479

by: RICHA1189

08 Apr 2023, 03:09

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Is x > y ? (1) x^5 > y^5 (2) x^4 < y^4

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

31 May 2022, 01:30

4

2

1,479

by: bumpbot

04 Jun 2023, 23:29

ER

Following every 11 consecutive days of swimming practice, Danny has 3

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

08 Jan 2023, 08:32

2

1,479

by: Ertucinar

04 Mar 2025, 02:36

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If 2^x*7^y = z, what is the value of z ? (1) x − y = 1 (2) 2^x = 8

Sub 505 (Easy) | Exponents

Sub 505 (Easy) | Exponents hide tags

Bunuel

05 Mar 2019, 04:50

2

1,478

by: Archit3110

05 Mar 2019, 11:02

ER

If x + 2y = 11, what is the value of x? (1) 3x – y = 12 (2) x^2– 4y =1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

02 May 2019, 06:28

1

1,478

by: sumi747

02 May 2019, 06:35

ER

What is the area of the circle with center C?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

13 Oct 2022, 01:31

3

1

1,478

by: SaquibHGMATWhiz

13 Oct 2022, 01:52

ER

Patrick takes 2 hours to drive in his car from point A to point B. Wha

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

26 Nov 2022, 09:45

5

2

1,478

by: harshittahuja

26 Nov 2022, 11:41

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If f(x)=3x5 for all x, then what is the value of x?

505-555 (Easy) | Functions and Custom Characters

505-555 (Easy) | Functions and Custom Characters hide tags

Bunuel

15 May 2023, 01:30

1

2

1,478

by: chanhthang1802

16 May 2023, 01:14

A and B are distinct positive integers. What is A^B - B^A ?

655-705 (Hard) | Exponents, Number Properties

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

amanvermagmat

26 Jul 2018, 11:39

4

2

1,478

by: bumpbot

13 Aug 2024, 14:39

ER

Is m^2/n>0?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

GMATBusters

25 Jan 2020, 23:52

1

9

1,477

by: firas92

28 Jan 2020, 10:31

If a, b, k are positive integers, is the sum (a + b) an even number?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

PyjamaScientist

18 Oct 2021, 03:58

2

1

1,476

by: Nidzo

18 Oct 2021, 03:56

ER

If p < x < q and r < y < s, is x > y?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Carcass

11 Jan 2022, 17:03

6

1

1,476

by: Jagmeister

05 Feb 2022, 11:16

ER

x is one of the numbers 3 or 6. Is xy equal to 12 ? (1) Exactly one of

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

12 Jul 2019, 01:33

13

3

1,476

by: bumpbot

19 Oct 2023, 18:25

ER

Is u > v? (1) 0 < u < 5/6 (2) 2/3 < v < 1

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

02 Oct 2020, 01:30

1

2

1,475

by: TestPrepUnlimited

04 Oct 2020, 13:53

ER

Of the 115 members at the Shady Hills Country Club, some play only ten

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

Bunuel

05 Aug 2024, 01:30

4

1

1,475

by: stne

06 Aug 2024, 15:22

ER

If the circle passes through the origin and has a perimeter of kπ, wha

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

30 Aug 2018, 04:54

2

1,474

by: PKN

30 Aug 2018, 08:43

ER

Is x < y ? (1) a < x < b (2) a < b < y

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

17 Feb 2020, 05:21

1

1,474

by: IanStewart

17 Feb 2020, 06:26

ER

Is ab > 0? (1) abc < 0 (2) b^2c < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

GMATinsight

05 Apr 2021, 00:30

4

1,474

by: KSBGC

06 Apr 2021, 11:54

ER

Is the positive integer p a multiple of 24? (1) p is a multiple of 2.

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

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

Carcass

20 Sep 2022, 00:20

3

2

1,474

by: av1901

20 Sep 2022, 07:48

ER

If a < b, is (x − a)^2 > (x − b)^2? 1) x > a + b/2 2) x − a > x − b

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Russ19

12 Sep 2021, 07:45

1

4

1,474

by: bumpbot

04 Dec 2022, 23:04

ER

A cyclist travels 20 miles at a speed of 15 miles per hour. If he

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

27 Mar 2024, 01:30

3

2

1,474

by: GMATinsight

27 Mar 2024, 08:37

ER

Is n an integer? (1) 2n is an integer (2) 1/n is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

30 Mar 2023, 02:45

3

2

1,474

by: bumpbot

16 May 2025, 11:45

ER

If a and b are odd natural numbers, is 7/2 + a/2 + b/3 an integer?

655-705 (Hard) | Multiples and Factors

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

Gnpth

04 Aug 2017, 09:21

1

1,473

by: IanStewart

04 Aug 2017, 09:43

ER

If a*b 0, and (x a)(x + b) = 0, is b = a? (1) x + a = 0 (2) x+b=0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Feb 2023, 02:30

5

3

1,473

by: Suvankar8250

14 Mar 2023, 02:08

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

1,473

by: Bunuel

21 Jan 2024, 01:37

ER

A certain jar has a capacity of 1284 jelly beans. How many minutes

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

14 Jun 2024, 01:30

3

1,473

by: ajay0520

14 Jun 2024, 06:21

ER

In Papersville, 6,000 people read either the Herald or the Tribune.

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

28 Oct 2024, 01:30

2

3

1,473

by: soma7

09 Nov 2024, 05:13

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

1,473

by: ybhatt32

21 Nov 2024, 08:22

ER

The students at a school took a math exam. Is the average (arithmetic

505-555 (Easy) | Statistics and Sets Problems

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

MathRevolution

25 Apr 2018, 00:35

3

1,472

by: MathRevolution

27 Apr 2018, 01:08

ER

If the lines shown in the picture touch the circle only at points A an

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

09 Sep 2018, 08:05

4

2

1,472

by: prashant6923

26 Sep 2018, 03:44

ER

In a football tournament, students from a certain college play for eit

555-605 (Medium) | Overlapping Sets

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Bunuel

19 Jan 2022, 06:30

2

1

1,472

by: stne

29 Jan 2022, 23:36

ER

What is the area of triangle ORQ, shown above?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

23 Oct 2019, 02:07

4

3

1,471

by: MathRevolution

26 Oct 2019, 09:18