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# Data Sufficiency (DS)

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286
ER
 150 Hardest and easiest questions for DS   Tags:
Bunuel

9

38318

24 Aug 2017, 21:58

643
ER
 DS Question Directory by Topic and Difficulty   Tags: Coordinate Geometry
bb

0

182357

07 Mar 2012, 08:58

Topics

11
ER
 The number of seats in the first row of an auditorium is 18
Bunuel

6

15529

17 Sep 2017, 22:40

2
ER
 Is x greater than y?
Bunuel

3

655

26 Jan 2016, 21:47

1
ER
 Is the product xy > 27?
Bunuel

2

661

07 Sep 2017, 01:00

1
ER
 Tom was born on October 28th. On what day of the week was he born?
Bunuel

5

618

01 Jul 2016, 03:11

4
ER
 If x and y are positive integers, is x^2 – y^2 an even integer?
Bunuel

7

908

20 Nov 2016, 08:33

6
ER
 If n is a positive integer, what is the remainder when n^2 is divided
Bunuel

6

758

17 Aug 2017, 03:40

2
ER
 Is x a prime number?
Bunuel

2

574

25 May 2016, 21:45

26
ER
 Was the number of books sold at Bookstore X last week greater than the
Bunuel

8

3659

21 Oct 2017, 11:27

7
ER
 If a > 0 and b > 0, is a/b > b/a ?
Bunuel

6

1380

04 Sep 2016, 04:44

1
ER
 Did more than half of the men on the committee wear blue?
Bunuel

8

603

05 Jul 2017, 11:09

2
ER
 Let m be a positive integer with 5 digits. If rounding m to the neares
Bunuel

7

552

25 Dec 2016, 09:05

ER
 Hoses P and T simultaneously fill an empty swimming pool that has a ca
Bunuel

1

265

19 Mar 2017, 08:48

12
ER
 In the xy-plane, region Q consists of all points (x,y) such that x^2 +
Bunuel

5

2274

20 Jul 2017, 06:15

5
ER
 Triangles ABC and DEF are similar. What percent of the area of triangl
Bunuel

8

2808

29 Jun 2017, 04:45

18
ER
 What is the value of K?
Bunuel

7

1407

01 Nov 2016, 09:19

6
ER
 If a^2 = b, is 1 > a > 0?
Bunuel

4

1564

15 Sep 2017, 00:33

19
ER
 In PQR, if PQ = x, QR = x + 2, and PR = y, which of the
Bunuel

8

9095

05 Sep 2017, 18:22

19
ER
 A triangle is formed by the x-axis, the y-axis, and Line M. Is the are
Bunuel

10

2579

27 Sep 2017, 14:42

2
ER
 Is x < 2?
Bunuel

2

534

30 Jan 2016, 00:20

ER
 The average (arithmetic mean) height of five of Peter’s friends is 70
Bunuel

2

704

25 Mar 2016, 21:02

1
ER
 In the figure to the right is b > a ? (Note: Figure not drawn to scale
Bunuel

4

1278

06 Sep 2017, 19:19

ER
 If m/n were expressed as a decimal, would that decimal terminate?
Bunuel

2

533

22 Apr 2016, 07:44

3
ER
 If x is a positive integer, is x divided by 5 an odd integer?
Bunuel

4

1318

19 Jul 2017, 21:42

72
ER
 If the positive integer n is added to each of the integers 69, 94, and
Bunuel

10

4914

03 Jun 2017, 17:33

ER
 A total of 72 passengers are on a ship, and they go out on an excursio
Bunuel

2

355

21 Aug 2016, 05:52

1
ER
 At a particular university with 200 students 40% receive loans and 30%
Bunuel

2

382

22 Dec 2016, 14:30

ER
 Is x a multiple of 9? (1) x = (b!)(c), where b and c are distinct int
Bunuel

3

443

25 Dec 2016, 10:02

1
ER
 If a horse runs his first lap in 75 seconds, how long will it take the
Bunuel

5

398

20 Mar 2017, 19:37

3
ER
 To make the school racquetball team, Larry must win at least 75% of hi
Bunuel

7

1418

23 Apr 2017, 03:38

12
ER
 If y is a nonzero integer, what is the value of |y|?
Bunuel

14

1832

24 Jul 2016, 06:52

6
ER
 What is the value of n in the list above?
Bunuel

8

8218

30 Jul 2016, 08:47

ER
 How long did Justin spend driving from Town A to Town B to Town C?
Bunuel

1

652

30 Mar 2016, 23:53

1
ER
 How many of the 90 laptop computers sold in January by online retailer
Bunuel

1

622

25 May 2016, 22:00

21
ER
 Three dice, each of which has its 6 sides numbered 1 through 6, are to
Bunuel

7

3329

11 Aug 2017, 03:19

2
ER
 In the xy plane, is the point (4, −2) on the line l?
Bunuel

6

576

22 Aug 2016, 04:40

ER
 If |x – 6| = 5, what is the value of x?
Bunuel

2

442

02 Dec 2016, 09:17

7
ER
 If xy < 3, is x < 1?
Bunuel

9

3660

08 Jun 2017, 14:47

1
ER
 If 3x + 2y = -2z, what is x? (1) x – y – z = 10 (2) x + y + z = -2
Bunuel

4

362

01 Oct 2017, 06:01

14
ER
 In the trapezoid above, with sides a, b, c, and 1, what is the value o
Bunuel

8

2250

01 Apr 2017, 10:10

15
ER
 Is x > y?
Bunuel

11

1729

15 Jul 2017, 23:49

ER
 How long would it take Joan to count the books in a small library?
Bunuel

4

815

04 Feb 2016, 10:35

1
ER
 Is Hector taller than Charley?
Bunuel

2

651

14 Sep 2017, 11:53

1
ER
 In triangle WXZ below, what is the length of side WX ?
Bunuel

1

1293

25 May 2016, 21:31

68
ER
 On the number line, point R has coordinate r and point T has coordinat
Bunuel

11

5543

12 Aug 2017, 09:58

1
ER
 If x is a 3–digit number, is x even?
Bunuel

2

365

02 Dec 2016, 09:25

1
ER
 At a particular university with 200 students 30% receive only loans an
Bunuel

1

289

20 Dec 2016, 03:22

7
ER
 If m/n = 5/3, what is the value of m + n ?
Bunuel

9

4382

24 Aug 2017, 17:31

ER
 If a and b are positive integers, is the product ab odd?
Bunuel

5

359

19 Apr 2017, 04:21

ER
 Is p + pz = p? (1) p = 0 (2) z = 0
Bunuel

3

639

06 Jun 2017, 16:49

1
ER
 If x - y < 0, what is the value of x + y?
Bunuel

5

403

15 Aug 2017, 01:34

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