Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

Guides & Resources

Guides & Resources hide tags

bb

23 Aug 2026, 13:03

1.6k

1

496,513

by: bb

23 Aug 2026, 13:01

Is x = 3?

555-605 (Medium) | Inequalities, Number Properties

555-605 (Medium) | Inequalities, Number Properties hide tags

GMATBusters

08 Dec 2018, 10:11

2

4

1,598

by: veekoul

09 Dec 2018, 13:59

ER

What is the value of x? (1) x^2/3 = x/81 (2) x > 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

06 Dec 2018, 05:56

5

1,537

by: globaldesi

09 Dec 2018, 05:08

ER

In the figure above, QRS is a straight line and line TR bisects PRS

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Jasontuyj2012

08 Dec 2018, 20:42

18

3

10,327

by: GMATBusters

08 Dec 2018, 20:43

Is positive integer z an even number? (1) z! <= z (2) z! >= z

555-605 (Medium) | Inequalities, Number Properties

555-605 (Medium) | Inequalities, Number Properties hide tags

Bunuel

06 Dec 2018, 05:44

2

1

1,215

by: Ypsychotic

06 Dec 2018, 05:55

What is |X| + |Y|? (1) X + Y = 10 (2) X and Y are both

555-605 (Medium) | Absolute Values, Number Properties

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

amanvermagmat

06 Dec 2018, 01:14

3

1

1,469

06 Dec 2018, 03:09

What is the area of triangle ABC? (1) Height AD on side BC

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

amanvermagmat

06 Dec 2018, 01:34

1

1,071

by: u1983

06 Dec 2018, 03:04

Is |X| + |Y| = X + Y? (1) X + Y = 8 (2) X and Y are both

555-605 (Medium) | Absolute Values, Number Properties

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

amanvermagmat

06 Dec 2018, 01:20

1

1,431

06 Dec 2018, 03:03

If m and n are both positive integers is (m + n^4)^(1/6) an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

21 Mar 2018, 05:31

2

1,510

by: stne

05 Dec 2018, 10:00

How much nitrogen is needed in the mixture used by a lawn maintenance

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

GMATBusters

05 Dec 2018, 07:07

5

1

2,975

05 Dec 2018, 07:31

ER

△ is one operation of addition, subtraction, multiplication, or divisi

Sub 505 (Easy) | Functions and Custom Characters

Sub 505 (Easy) | Functions and Custom Characters hide tags

MathRevolution

31 Aug 2017, 01:24

1

5

2,325

by: kapstone1996

04 Dec 2018, 09:33

ER

If X and Y are positive integer, what is the number of factors of A

605-655 (Medium) | Multiples and Factors

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

fitzpratik

01 Dec 2018, 20:55

1

1,583

by: ccooley

03 Dec 2018, 14:59

ER

7 students each bought some books on a book fair. Is the total number

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Zed3092

03 Dec 2018, 03:46

6

2

2,503

by: kylebecker9

03 Dec 2018, 11:26

ER

Is m^n a perfect square?

Poor Quality

Poor Quality hide tags

barryseal

01 Dec 2018, 06:24

5

15

1,912

by: barryseal

03 Dec 2018, 00:11

ER

If x and y are distinct non-negative integers, what is the value of x^

Poor Quality

Poor Quality hide tags

mkortepe

02 Dec 2018, 19:23

3

1

1,588

by: chetan2u

02 Dec 2018, 21:41

Is x^2 > x ? (1) x is a prime number (2) x ≥1

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Nikhil

15 Mar 2019, 00:12

2

3

1,873

by: Kamola

01 Dec 2018, 11:41

X and Y are two non zero numbers. What is |X| - |Y|?

655-705 (Hard) | Absolute Values, Algebra

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

amanvermagmat

30 Nov 2018, 20:15

4

2,478

by: NCRanjan

01 Dec 2018, 03:25

Is x divisible by 14?

505-555 (Easy) | Multiples and Factors

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

fitzpratik

28 Nov 2018, 09:49

2

1

1,652

by: philipssonicare

01 Dec 2018, 02:09

If n is an integer, is n odd?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

01 Nov 2015, 09:12

3

5

3,833

30 Nov 2018, 13:09

X and Y are two numbers such that |X|=|Y|. What is the sum

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

amanvermagmat

30 Nov 2018, 04:01

1

2,105

30 Nov 2018, 04:07

ER

Is x positive? (1) x^2 + 10 x > 0 (2) 3^x > 1

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

29 Oct 2017, 01:41

5

2

2,874

by: BrentGMATPrepNow

29 Nov 2018, 18:07

ER

Triangle ABC is right angled at B, while triangle ACD is right angled

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

amanvermagmat

22 Nov 2018, 23:38

6

3

3,140

by: kylebecker9

29 Nov 2018, 09:34

A cinema studio has 3 screens: A, B and C. Each of these 3 screens run

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

amanvermagmat

28 Nov 2018, 01:51

1

2

2,262

by: souvikgmat1990

28 Nov 2018, 10:58

ER

Is the sum of the roots of the equation, x^2 + bx + c = 0, positive?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

28 Mar 2018, 23:35

4

2,844

by: shrik

27 Nov 2018, 09:52

Is 2^x > 75 ? (1) 3^x > 50 (2) 2^x*3^x > 1500

605-655 (Medium) | Exponents, Inequalities

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

Bunuel

27 Nov 2018, 00:44

4

1,902

by: ArjunJag1328

27 Nov 2018, 05:09

ER

If x and y both are integers, what is the value of x+y?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Abhi077

03 Nov 2018, 10:03

5

7

1,751

by: chetan2u

27 Nov 2018, 04:53

Rajesh and Pihu started walking from the same point in opposite direct

555-605 (Medium) | Distance and Speed Problems

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

amanvermagmat

25 Nov 2018, 22:09

5

4

1,913

by: soapbolt

27 Nov 2018, 00:11

ER

What is the value of x?

505-555 (Easy) | Inequalities, Number Properties

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

Bunuel

22 Feb 2016, 04:38

13

7

4,241

25 Nov 2018, 00:49

ER

The figure shows a rectangle with a triangle inscribed in it

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

pushpitkc

24 Nov 2018, 23:34

3

2,936

by: chetan2u

24 Nov 2018, 23:52

Is m > n? (1) 3/7 < m < 5/7 (2) 2/7 < n < 4/7

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

22 Nov 2018, 03:53

4

1,988

23 Nov 2018, 22:10

What is the area of a rectangular surface that has length x feet and

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

18 Dec 2014, 06:59

6

3

5,128

21 Nov 2018, 21:14

ER

If x, y, and z are consecutive integers, and x < y < z , is x even?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

bschool83

04 Oct 2017, 01:13

4

3,601

21 Nov 2018, 20:02

ER

If x + y = 10, is x = 4? (1) y is not 6. (2) y is 4.

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

30 Jul 2015, 10:42

12

15

3,204

21 Nov 2018, 19:41

If a is a positive integer, is a^(1/2) an integer?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

24 Jun 2017, 06:54

2

3

1,972

20 Nov 2018, 08:46

What is n ? (1) n = 25^(1/2) (2) n^2 = 25

505-555 (Easy) | Algebra, Number Properties

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

Bunuel

19 Nov 2018, 00:12

1

2

1,304

20 Nov 2018, 02:23

The average of two numbers is 108. What is the value of the greater nu

Sub 505 (Easy) | Algebra, Fractions and Ratios

Sub 505 (Easy) | Algebra, Fractions and Ratios hide tags

Bunuel

19 Nov 2018, 00:05

1

2

1,620

20 Nov 2018, 02:02

What is x ? (1) The ratio of x:y is 1:3. (2) The ratio of y:z is 1:2.

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

Bunuel

18 Nov 2018, 23:58

2

2,106

20 Nov 2018, 01:58

What is the value of x – y ? (1) x = y + 3 (2) x^2 − 2xy + y^2 = 9

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Nov 2018, 00:20

1

5

1,608

by: KSBGC

19 Nov 2018, 04:35

If p is an integer, is q an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

24 Dec 2017, 01:27

2

4

2,176

16 Nov 2018, 14:37

What is the value of n? (1) n^(1/2) = 2 (2) (4n)^(1/2) = 4

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

GMATBusters

01 Nov 2018, 07:54

1

4

4,813

by: KSBGC

16 Nov 2018, 10:57

ER

Is the average (arithmetic mean) of a and b less than 40?

Sub 505 (Easy) | Algebra, Statistics and Sets Problems

Sub 505 (Easy) | Algebra, Statistics and Sets Problems hide tags

Bunuel

29 Sep 2015, 21:35

3

8

8,131

16 Nov 2018, 10:51

ER

If p = 3q, is p^2 > q^2

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

vikrantgulia

03 Jan 2014, 08:01

14

11

5,906

by: sumisachan

16 Nov 2018, 04:14

What is the value of the integer p ? (1) p is a prime factor of 33.

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

15 Nov 2018, 05:26

1

3

1,782

by: Nighat Bano

16 Nov 2018, 02:55

ER

If line k in the xy-coordinate plane has the equation Ax + By = C, wha

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

23 Jul 2018, 03:15

7

4

7,493

by: BrentGMATPrepNow

15 Nov 2018, 08:23

If x is a member of the set {12, 15, 18, 24, 36, 45}, what is the valu

505-555 (Easy) | Multiples and Factors

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

Bunuel

15 Nov 2018, 05:28

2

3

1,620

15 Nov 2018, 06:00

ER

If m and n are integers, and m is a multiple of 5, is mn a multiple of

555-605 (Medium) | Multiples and Factors

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

Bunuel

15 Nov 2018, 05:21

1

3

2,431

15 Nov 2018, 05:52

If x and z are integers, how many even integers y are there such that

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

15 Nov 2018, 05:30

1

3

1,827

15 Nov 2018, 05:42

ER

What is the value of j ?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

15 Nov 2018, 03:47

4

3,590

15 Nov 2018, 04:34

ER

If x = y + 2, where x, y are positive integers. Is (x + y) a multiple

605-655 (Medium) | Algebra, Number Properties

605-655 (Medium) | Algebra, Number Properties hide tags

v12345

12 Nov 2018, 10:39

8

3

1,618

15 Nov 2018, 03:19

ER

How much money did Day School D spend on operating expenses?

Sub 505 (Easy) | Percent and Interest Problems

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

Sajjad1994

25 Sep 2017, 12:24

2

4

2,128

by: sam3378

14 Nov 2018, 23:06

ER

Two intersecting lines form four angles. Are the lines

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

arjtryarjtry

26 Jul 2008, 01:52

7

3

5,222