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

79,070

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

188,727

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

488,285

by: bb

29 Aug 2025, 13:27

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If a is a positive number less than 10, is c greater than the average

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

08 Jan 2018, 23:39

1

3

2,030

by: chetan2u

04 Mar 2018, 08:41

ER

If the average (arithmetic mean) of positive integers x and y is a pos

655-705 (Hard) | Multiples and Factors

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

Bunuel

08 Jan 2018, 23:40

3

1,888

by: Bunuel

11 Feb 2018, 08:21

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If x + y = z, is the average (arithmetic mean) of x, y and z greater

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

09 Jan 2018, 23:31

5

2

2,176

by: bumpbot

29 Dec 2022, 07:12

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Is x an integer? (1) The average (arithmetic mean) of x – 1 and x +

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

09 Jan 2018, 23:32

7

1,818

by: amanvermagmat

10 Jan 2018, 22:43

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If 6 positive integers have a sum less than 10, what is the value of

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

09 Jan 2018, 23:38

3

2,171

by: chetan2u

11 Jan 2018, 08:24

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If a is a positive number less than 10, is c greater than the average

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

09 Jan 2018, 23:39

1

1,766

by: amanvermagmat

10 Jan 2018, 00:33

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Anthony purchased shirts and trousers in a ratio of 4 to 5, where a is

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

Bunuel

09 Jan 2018, 23:40

3

2

1,760

by: bumpbot

09 Oct 2021, 10:38

ER

Shane drives from his house to the beach by one of three possible rout

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

09 Jan 2018, 23:42

8

3

3,026

by: bumpbot

07 Feb 2023, 09:18

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Working alone at its constant rate, machine A can produce 240 pins in

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

MathRevolution

10 Jan 2018, 01:02

14

4

6,977

by: bumpbot

18 May 2025, 06:20

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If the average (arithmetic mean) of x and y is positive, is x positive

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

10 Jan 2018, 05:36

4

3

1,657

by: PraveenChahal

10 Jan 2018, 09:24

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Amira's pitcher can hold a maximum of how many ounces of water?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Jan 2018, 23:43

1

2

2,204

by: bumpbot

13 Feb 2022, 11:57

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The cost, c and the revenue, r are related via the equation

555-605 (Medium) | Fractions and Ratios

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

MathRevolution

11 Jan 2018, 01:42

10

3

4,389

by: bumpbot

29 Oct 2024, 09:07

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If x is an integer and 3x+8>-1, what is the value of x?

605-655 (Medium) | Absolute Values, Inequalities

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

chetan2u

11 Jan 2018, 05:28

2

2,210

by: MathRevolution

15 Jan 2018, 11:47

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If a and b are integers, what is the sum of the reciprocals of a and b

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Jan 2018, 21:17

2

1,372

by: tu2325

12 Jan 2018, 18:32

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What digit is y in the decimal 0.y847?

555-605 (Medium) | Fractions and Ratios

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

Bunuel

11 Jan 2018, 21:57

3

2

1,552

by: bumpbot

10 Jan 2025, 04:30

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Is x greater than 2.4?

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

11 Jan 2018, 21:59

3

2

2,950

by: bumpbot

21 Oct 2023, 07:19

ER

Is 12.5% of a greater than 11?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

11 Jan 2018, 23:05

6

4

2,256

by: bumpbot

08 Feb 2021, 08:48

ER

At Laurent Hills Elementary, if 60% of the 2000 students participate

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

11 Jan 2018, 23:21

4

2

2,309

by: bumpbot

22 Feb 2022, 12:59

ER

When positive integer x is divided by 4, how many non-zero digits will

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

11 Jan 2018, 23:30

1

2

1,881

by: bumpbot

27 Nov 2023, 13:53

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What is the value of (4a - b)/(a - b)?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

11 Jan 2018, 23:37

13

2

2,773

by: Target4bschool

24 Sep 2020, 12:27

ER

Is x equal to 2.5?

555-605 (Medium) | Fractions and Ratios

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

Bunuel

11 Jan 2018, 23:38

2

3

2,469

by: Mo2men

03 Feb 2018, 17:41

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If x, y, and z are integers greater than 0 and x = y + z, what is the

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Jan 2018, 23:50

1

1,658

by: Rahul5843

12 Jan 2018, 00:41

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If 0 < z < 1, is the hundredths digit of z equal to 9?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

12 Jan 2018, 00:41

1

1,282

by: Rahul5843

12 Jan 2018, 00:55

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If x and y are integers greater than 1 and x>y, what is the value of

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

MathRevolution

12 Jan 2018, 00:51

10

7

5,545

by: bumpbot

17 Jan 2024, 22:35

ER

Two cars A and B start from diametrically opposite points of a circula

805+ (Hard) | Distance and Speed Problems, Fractions and Ratios

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

chetan2u

13 Jan 2018, 05:28

46

12

10,133

by: bumpbot

16 Aug 2022, 16:16

ER

What is the numerical value of the expression (3m - n)/(n - m)?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

14 Jan 2018, 06:01

2

6

3,681

by: bumpbot

05 Nov 2023, 20:57

ER

If x is an even integer, is x divisible by 6?

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

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

chetan2u

14 Jan 2018, 06:04

19

13

4,068

by: Basshead

05 Nov 2020, 16:27

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What is the hundredths digit in the decimal expression of r/55?

705-805 (Hard) | Multiples and Factors

705-805 (Hard) | Multiples and Factors hide tags

Bunuel

14 Jan 2018, 06:28

16

3

2,442

by: Bunuel

14 Apr 2024, 11:01

ER

Cyclist A leaves point X at 12 noon and travels at constant velocity

655-705 (Hard) | Distance and Speed Problems

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

Bunuel

14 Jan 2018, 06:45

12

7

4,973

by: bumpbot

29 Apr 2026, 07:20

ER

If a < 0, is b < 0 ? (1) b/a > 0 (2) a - b > 0

505-555 (Easy) | Fractions and Ratios, Inequalities

505-555 (Easy) | Fractions and Ratios, Inequalities hide tags

kritikalal

14 Jan 2018, 08:30

6

7

6,126

by: bumpbot

02 Jun 2023, 09:04

ER

What is the value of x ? (1) xy = 6 (2) x + y = 5

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Jan 2018, 08:38

3

5

3,548

by: bumpbot

24 Feb 2020, 03:37

ER

In the circle above with center O, what is the length of minor arc BC?

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

15 Jan 2018, 21:53

4

3

5,115

by: AnubhutiSharma

15 Jan 2018, 22:40

ER

What is the average (arithmetic mean) of 2x and 6y ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

18 Jan 2018, 08:07

2

1,942

by: AkshdeepS

17 Jul 2018, 00:17

ER

If xy0, is |x|>|y|

Poor Quality

Poor Quality hide tags

MathRevolution

19 Jan 2018, 01:17

2

10

3,180

by: Bunuel

26 Jun 2020, 07:44

ER

Is the positive Integer x a perfect square? 1) Sum of all factors of

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

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

GMATinsight

19 Jan 2018, 07:30

6

3,534

by: CrackverbalGMAT

03 Sep 2019, 23:22

ER

Is 4^(x + 3) < 64 ? (1) 4^(x + 1) < 4 (2) 4^(x + 2) > 4

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

19 Jan 2018, 10:18

2

1,904

by: MathRevolution

22 Jan 2018, 14:20

ER

Of the universities surveyed about the qualifications they required in

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

19 Jan 2018, 10:25

2

3,299

by: yashikaaggarwal

06 Jun 2020, 05:34

ER

In the xy-plane, if line m has negative slope and passes through the

705-805 (Hard) | Coordinate Plane

705-805 (Hard) | Coordinate Plane hide tags

Bunuel

19 Jan 2018, 10:45

5

3,550

by: bumpbot

13 Sep 2020, 16:10

ER

If $6,000 invested for one year at x percent simple annual interest

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

19 Jan 2018, 10:48

4

2

3,193

by: bumpbot

08 Jul 2025, 23:30

ER

If m and n are positive integers and mn = 24, what is the value of m ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

19 Jan 2018, 10:54

2

3,666

by: kdgodoy

20 Jan 2018, 12:22

ER

Is x greater than x^3? (1) x is negative. (2) x^2 - x^3 > 2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

19 Jan 2018, 10:57

2

3

2,065

by: MathRevolution

22 Jan 2018, 23:05

ER

If n is to be selected at random from set S, what is the probability

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

19 Jan 2018, 11:00

6

3

2,566

by: bumpbot

24 Apr 2023, 09:13

ER

If n is an integer, is the prime number y equal to 5 ?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

19 Jan 2018, 11:01

6

4

2,207

by: bumpbot

04 Jan 2025, 22:35

ER

If s and t are positive, is s/t less than st ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

19 Jan 2018, 11:03

5

4

3,199

by: Thekingmaker

07 Jun 2021, 10:48

ER

What is the value of (k – w ) + (k – x ) + (k – y )?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

21 Jan 2018, 03:19

9

4

4,080

by: bumpbot

19 Jan 2024, 10:06

ER

If x, y and z are integers then is the product of x, y, and z divisibl

Poor Quality

Poor Quality hide tags

akgulhane

21 Jan 2018, 23:14

3

2,208

by: Bunuel

21 Jan 2018, 23:28

ER

In a certain class of 5 students, the average (arithmetic mean) weight

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Bunuel

18 Aug 2025, 09:22

25

13

9,449

by: bumpbot

18 Aug 2025, 08:46

ER

What was Marla's travel time from Minneapolis to Baltimore?

605-655 (Medium) | Distance and Speed Problems

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

Bunuel

22 Jan 2018, 01:23

6

5

2,474

by: pratiksha1998

01 Aug 2024, 08:04

ER

If x < 20, How many distinct factors does odd number x have? 1) 16x

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

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

GMATinsight

23 Jan 2018, 03:58

7

17

4,089

by: amanvermagmat

23 Jan 2018, 23:19

ER

If a is a positive number less than 10, is c greater than the average

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

22 Jan 2018, 23:28

4

3

2,359

by: bumpbot

24 Oct 2023, 08:01