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

79,893

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

858

24

189,017

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

488,732

by: bb

29 Aug 2025, 13:27

ER

If R is an integer, is R evenly divisible by 3?

505-555 (Easy) | Multiples and Factors

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

Bunuel

03 Apr 2015, 04:50

8

16

9,880

by: bumpbot

24 Feb 2022, 14:03

ER

In triangle ABC, angle A and angle B are 30 and 60 degrees, respective

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

31 Dec 2020, 01:32

8

3

3,895

by: bumpbot

10 Mar 2022, 21:29

ER

If x is equal to one of the numbers 5/11, 7/12, 9/13 what is the value

605-655 (Medium) | Fractions and Ratios, Inequalities

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

Bunuel

10 Aug 2017, 01:31

8

7

3,462

by: bumpbot

15 Mar 2022, 04:27

ER

A few taps, numbered 1, 2, 3 . . . , are connected to a tank, each hav

555-605 (Medium) | Work and Rate Problems

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

Bunuel

06 Aug 2017, 00:54

8

4

6,260

by: bumpbot

15 Mar 2022, 12:41

ER

What is the area of triangle EBC? (1) The area of ΔAED is 16. (2) Th

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

08 Apr 2021, 11:00

8

2

2,508

by: rvgmat12

24 Mar 2022, 00:25

ER

If a and b are positive integers, a > b, is 3^a – 3^b divisible by 13?

655-705 (Hard) | Multiples and Factors

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

Russ19

26 Mar 2020, 09:07

8

4

2,901

by: bumpbot

25 Mar 2022, 04:13

ER

If xy 0, what is the value of x/y ? (1) y = 4 x (2) x(x 6y) =

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

30 Mar 2022, 08:00

8

1

1,798

by: divyadna

30 Mar 2022, 08:15

ER

There is a triangle ACE shown as above figure. what is the measurement

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

MathRevolution

01 Jun 2016, 18:12

8

3

2,609

by: bumpbot

07 Apr 2022, 19:07

ER

p is an integer; n is an integer; and p/n is an integer. Is p/n odd?

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

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

Bunuel

08 Feb 2018, 23:40

8

6

4,909

by: bumpbot

08 Apr 2022, 02:48

ER

If each side of a parallelogram has a length of 6, what is the area of

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

29 Oct 2015, 01:19

8

6

3,991

by: bumpbot

11 Apr 2022, 02:36

ER

What is the remainder when the sum of the positive integers x and y is

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

Bunuel

12 Nov 2017, 23:37

8

3

7,229

by: bumpbot

25 Apr 2022, 04:59

ER

A man invests two equal sums of money in two banks, both under simple

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

10 Jul 2017, 02:40

8

4

3,223

by: Pranay18

03 May 2022, 03:19

ER

If t is an integer, is 3^t a factor of 21!?

605-655 (Medium) | Exponents +2 tags

605-655 (Medium) | Exponents, Multiples and Factors, Number Properties hide tags

Bunuel

23 Feb 2021, 01:15

8

6

3,966

by: bumpbot

15 May 2022, 11:24

ER

In the figure above, JKL is a right triangle. What is the area of tria

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

13 Nov 2018, 00:42

8

10

6,408

by: Jezza

16 May 2022, 03:14

ER

Is x + y negative? (1) x is positive. (2) y is negative.

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

hitmoss

15 May 2011, 06:42

8

7

8,906

by: AritraKundu

22 May 2022, 20:19

ER

Is the integer n odd? (1) n^2 - 2n is not a multiple of 4. (2) n is

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

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

Bunuel

17 Mar 2022, 01:30

8

7

2,965

by: ND104

25 May 2022, 06:45

ER

If a, b, and c are three different numbers, then what is the value of

805+ (Hard) | Fractions and Ratios

805+ (Hard) | Fractions and Ratios hide tags

Bunuel

28 Oct 2021, 01:30

8

3

2,516

by: AashishGautam

07 Jun 2022, 19:46

ER

If x is an integer, is x odd? (1) x + (x + 1) + (x + 2) is odd (2) x^2

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

19 Jun 2018, 07:00

8

6

4,468

by: Bunuel

14 Jun 2022, 01:18

ER

If x and y are positive integers, what is the value of xy?

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

Bunuel

14 Jun 2022, 17:15

8

3

1,895

by: Nidzo

20 Jun 2022, 02:18

ER

Is A+2B < C + 2D?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Millis79

12 Feb 2014, 18:12

8

10

7,412

by: bumpbot

20 Jun 2022, 11:23

ER

Is a triangle with angles x, y and z isosceles?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

pratikshr

01 Aug 2014, 07:34

8

5

4,180

by: yuvrajmehra

03 Jul 2022, 05:52

ER

Working together at their respective rates, machine A, B, and C can fi

Sub 505 (Easy) | Work and Rate Problems

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

Bunuel

02 Jan 2021, 11:11

8

3

4,729

by: bumpbot

11 Jul 2022, 12:41

ER

If a, b, and c are positive, is a > b?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

13 Oct 2020, 00:15

8

5

4,267

by: bumpbot

15 Jul 2022, 04:06

ER

A certain bank charges a maintenance fee on a standard checking accoun

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

naveenhv

06 May 2011, 10:17

8

4

10,997

by: bumpbot

19 Jul 2022, 03:00

On the x-y coordinate grid, are points A (x1, y1) and B (x2, y2) equid

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

Kritisood

14 Mar 2020, 22:50

8

4

3,753

by: bumpbot

01 Aug 2022, 08:43

ER

If a is less than 80% of b, is a less than 50?

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

11 Feb 2020, 01:17

8

9

3,566

by: bumpbot

04 Aug 2022, 18:47

ER

X is a three-digit number whose hundredth digit, tens digit, and units

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

AR15J

10 Jul 2018, 21:24

8

3

4,042

by: bumpbot

09 Aug 2022, 12:07

ER

Is x = y? (1) x^2 = xy (2) x^2 = y^2

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

talismaaniac

17 Nov 2017, 08:00

8

3

2,117

by: bumpbot

22 Aug 2022, 05:57

ER

Sets S and T contain an equal number of elements, all of which are pos

605-655 (Medium) | Statistics and Sets Problems

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

Bunuel

05 Mar 2021, 01:15

8

4

5,032

by: bumpbot

22 Aug 2022, 10:05

ER

If the integers a and n are positive and the product of the first 8 po

705-805 (Hard) | Exponents

705-805 (Hard) | Exponents hide tags

Bunuel

31 Dec 2020, 01:15

8

7

2,685

by: bumpbot

23 Aug 2022, 09:41

ER

How many positive divisors does integer m have?

705-805 (Hard) | Multiples and Factors, Number Properties

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

BrentGMATPrepNow

30 Aug 2022, 07:59

8

3

2,347

by: SaquibHGMATWhiz

05 Sep 2022, 23:12

ER

If y ≠ z, is ((x − y) + (z − y)(/(z − y) = 2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

TheUltimateWinner

18 Jun 2020, 10:20

8

5

2,329

by: mageauler

06 Sep 2022, 04:08

ER

In parallelogram ABCD , what is the measure of ADC?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

lovejyot

13 Sep 2022, 02:51

8

4

18,193

by: bumpbot

12 Sep 2022, 23:54

ER

How many points with Integer x and Y co-ordinate lies within the circl

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

GMATinsight

13 May 2017, 02:32

8

6

2,876

by: NgocAnh2510

13 Sep 2022, 08:45

ER

Is p positive?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

28 Feb 2017, 04:50

8

6

4,927

by: bumpbot

13 Sep 2022, 11:03

ER

A certain car travels 18 miles per gallon of gas on city streets and 3

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Feb 2020, 06:22

8

5

3,467

by: HC1993

18 Sep 2022, 04:00

ER

Is a > b? (1) a^2 b = 0 (2) a + b = 6

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

26 Sep 2022, 06:41

8

2

1,369

by: gmatophobia

26 Sep 2022, 12:34

ER

Is x > y? (1) |x| > y. (2) x + y > 0.

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

24 Jul 2017, 23:27

8

10

2,723

by: bumpbot

15 Oct 2022, 06:53

ER

On a certain item, a discount of x% on the marked price gives a trader

805+ (Hard) | Percent and Interest Problems

805+ (Hard) | Percent and Interest Problems hide tags

Bunuel

02 Feb 2021, 01:15

8

3

2,506

by: bumpbot

18 Oct 2022, 12:35

ER

Is k a multiple of 14? (1) k > 13! (2) k = m!, where m is an integer g

605-655 (Medium) | Multiples and Factors, Number Properties

605-655 (Medium) | Multiples and Factors, Number Properties hide tags

duahsolo

17 Aug 2016, 12:18

8

5

2,335

by: bumpbot

19 Oct 2022, 01:16

ER

Is b < 0? (1) b^3 < b (2) b^2 > b

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

01 Sep 2021, 02:00

8

4,550

by: Gijmaja

23 Oct 2022, 10:22

ER

If xy = z, what is the value of x ? (1) y = 2z (2) z < -1

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

10 Oct 2017, 00:52

8

4

2,671

by: chetan2u

04 Nov 2022, 19:46

ER

Is (|x|)^x > x|x|^3?

555-605 (Medium) | Absolute Values +2 tags

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

amgelcer

28 Sep 2013, 08:54

8

5

3,410

by: bumpbot

06 Nov 2022, 02:23

ER

If r and s are positive integers, is r + s even?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

26 Apr 2019, 01:52

8

10

16,569

by: avigutman

07 Nov 2022, 07:20

ER

Is quadrilateral ABCD a Rectangle?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

DHAR

31 Jul 2017, 06:43

8

11

6,921

by: bumpbot

14 Nov 2022, 08:39

ER

If P and Q are positive integers, what is the number of factors of X?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

Mo2men

23 Jun 2019, 10:08

8

7

3,840

by: bumpbot

16 Nov 2022, 07:13

ER

A man 6 feet tall is standing near a pole. On the top of the pole is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

16 Oct 2017, 01:48

8

4

7,593

by: bumpbot

21 Nov 2022, 23:05

ER

Does positive integer b have a factor n such that 1 < n < b ?

655-705 (Hard) | Multiples and Factors

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

Bunuel

13 Mar 2020, 05:33

8

2

3,827

by: bumpbot

22 Nov 2022, 11:41

ER

Is x<5? 1) 7,9 and x form sides of an obtuse angled triangle 2) 4,5 an

605-655 (Medium) | Geometry, Inequalities

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

TheUltimateWinner

16 Apr 2019, 09:25

8

2

1,260

by: bumpbot

28 Nov 2022, 20:08

ER

If a and b are positive integers, and a*10^5 = b*10^n what is the valu

605-655 (Medium) | Exponents

605-655 (Medium) | Exponents hide tags

Bunuel

30 Jun 2020, 03:11

8

4

2,582

by: bumpbot

07 Dec 2022, 10:51