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EMPOWERgmat PS Forum Expert  Ask Me Anything about PS and Math
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Source: EMPOWERgmat
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EMPOWERgmatRichC
26
5276
by:
EMPOWERgmatRichC
,
26 Oct 2019, 19:33
Veritas Prep PS Forum Expert  Karishma  Ask Me Anything about Math
Tags:
Source: Veritas Prep
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1
...
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VeritasKarishma
199
9986
by:
VeritasKarishma
,
30 Dec 2019, 21:38
Announcements
532
ER
100 Hardest and easiest questions for PS as of December 2019
Tags:
Difficulty: 700Level
Bunuel
13
106382
by:
miralishabbir
,
20 Dec 2019, 16:34
1955
ER
GMAT PS Question Directory by Topic & Difficulty
Tags:
Difficulty: 600700 Level
,
Difficulty: 700Level
,
Difficulty: Sub600 Level
,
Combinations
,
Mixture Problems
,
Work/Rate Problems
,
Source: GMAT Club Tests
,
Source: GMAT Prep
,
Source: Official Guide
bb
0
764767
by:
bb
,
22 Feb 2012, 11:27
GMAT Club Member
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Topics
27
ER
For integers x and y, which of the following MUST be an integer?
Tags:
Difficulty: 700Level
,
Algebra
,
Number Properties
,
Source: Veritas Prep
Bunuel
12
2777
by:
bumpbot
,
08 Oct 2019, 10:13
27
ER
Question of the Week  27 (q is a threedigit number, in which ......)
Tags:
Difficulty: 700Level
,
Algebra
,
Divisibility/Multiples/Factors
,
Number Properties
,
Source: eGMAT
EgmatQuantExpert
7
1058
by:
EgmatQuantExpert
,
19 Dec 2018, 07:44
27
ER
1+1/2+1/3+.....+1/16 is
Tags:
Difficulty: 700Level
,
Arithmetic
,
Fractions/Ratios/Decimals
,
Source: Manhattan GMAT
bagdbmba
14
4986
by:
bumpbot
,
22 Apr 2018, 12:44
26
ER
If x + x^2 + x^3 = 27, then the average (arithmetic mean) of x + x^2 +
Tags:
Difficulty: 700Level
,
Algebra
,
Arithmetic
,
Source: Veritas Prep
Bunuel
8
2975
by:
bumpbot
,
22 Aug 2018, 06:35
26
ER
Given a + 1 = b + 2 = c + 3 = d + 4 = a + b + c + d + 5, then what is
Tags:
Difficulty: 700Level
,
Algebra
,
Arithmetic
,
Fractions/Ratios/Decimals
,
Number Properties
,
Source: Other  Please specify
mangamma
11
1294
by:
hiranmay
,
26 Dec 2019, 09:02
26
ER
If the average of 993, 994, 996, 997, 998, 1001, 1001, 1002,
Tags:
Difficulty: 700Level
,
Arithmetic
,
Source: Manhattan GMAT
ruturaj
10
8384
by:
bumpbot
,
29 Aug 2019, 06:34
26
ER
Which value(s) of x satisfies the equation above?
Tags:
Difficulty: 700Level
,
Algebra
,
Roots
,
Source: GMAT Club Tests
,
Source: Magoosh
mikemcgarry
10
4851
by:
bumpbot
,
25 Nov 2018, 09:24
26
ER
If three positive real numbers x, y, z satisfy y – x = z – y and x y z
Tags:
Difficulty: 700Level
,
Algebra
,
Number Properties
,
Source: Other  Please specify
excelingmat
9
6164
by:
kapil1
,
15 Jul 2019, 22:49
26
ER
If for some value of x, 5^x + 5^(–x) = B, then which of the following
Tags:
Difficulty: 700Level
,
Algebra
,
Exponents/Powers
,
Source: Magoosh
lalania1
12
3177
by:
GMATGuruNY
,
27 Jun 2018, 13:13
26
ER
If 3f(x) + 2f(x) = 5x − 10, what is the value of f(1)?
Tags:
Difficulty: 700Level
,
Algebra
,
Functions and Custom Characters
,
Source: Other  Please specify
Bunuel
6
1704
by:
bumpbot
,
15 Oct 2018, 07:16
26
ER
Allegra and Graham edited a 72page manuscript together, each of them
Tags:
Difficulty: 700Level
,
Arithmetic
,
Source: Princeton Review
rekhabishop
7
1869
by:
bumpbot
,
03 Nov 2019, 00:22
26
ER
For positive integers a, b, and c, a < b < c < 100. Which of the follo
Tags:
Difficulty: 700Level
,
Arithmetic
,
Min/Max Problems
,
Source: Veritas Prep
Bunuel
13
2239
by:
bumpbot
,
13 Apr 2019, 07:52
26
ER
A businessman earns $27800 in December, thus decreasing his
Tags:
Difficulty: 700Level
,
Arithmetic
,
Word Problems
,
Source: Other  Please specify
PareshGmat
6
2276
by:
bumpbot
,
11 Jul 2019, 11:49
26
ER
Let N = 60! + 55! + 50! The unit digit of N and a number of digits to
Tags:
Difficulty: 700Level
,
Arithmetic
,
Combinations
,
Source: Magoosh
Gnpth
8
4362
by:
bumpbot
,
24 Jan 2019, 08:02
26
ER
If 3a – 2b – 2c = 32 and 3a  2b + 2c = 4, what is the value of a + b
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Other  Please specify
Bunuel
11
1421
by:
rulingbear
,
02 Oct 2017, 12:55
25
ER
The square root of integer x is equal to the sum of the cubes of y and
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Magoosh
Bunuel
12
1647
by:
bumpbot
,
14 Mar 2019, 11:48
25
ER
How many positive values of x exist if n is a positive integer and 10
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Magoosh
Bunuel
11
1784
by:
Kanika3agg
,
30 Sep 2019, 09:08
25
If Δ and ∅ represent single digits in the correctly worked c
Tags:
Difficulty: 700Level
,
Arithmetic
,
Functions and Custom Characters
Asifpirlo
10
4863
by:
bumpbot
,
16 Aug 2019, 06:39
25
A railroad worker finds himself trapped inside a tunnel at a point
Tags:
Difficulty: 700Level
,
Algebra
,
Distance/Rate Problems
,
Word Problems
,
Source: Other  Please specify
cptholt
3
1772
by:
sahibr
,
21 Feb 2019, 17:29
25
ER
The product (1  {1/2}^2)(1  {1/3}^2)...(1  {1/9}^2)(1  {
Tags:
Difficulty: 700Level
,
Arithmetic
fozzzy
4
2533
by:
bumpbot
,
22 Oct 2017, 08:54
25
ER
Joe is among N people in a group, where N > 3. If 3 people are randoml
Tags:
Difficulty: 700Level
,
Algebra
,
Probability
,
Source: GMATPrepNow
GMATPrepNow
19
1067
by:
mgmat4944
,
03 Jun 2019, 17:14
25
ER
If 7(a – 1) = 17(b – 1), and a and b are both positive integers the pr
Tags:
Difficulty: 700Level
,
Algebra
,
Min/Max Problems
,
Poor Quality
,
Source: Princeton Review
Bunuel
7
888
by:
himanshudhingra
,
30 Nov 2018, 08:33
24
ER
If (x^2 + 1)y=3, which of the following is not a possible value for y?
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Kaplan
oloman
11
3882
by:
bumpbot
,
26 Jul 2019, 06:25
24
ER
If x, y and z are nonnegative integers such that x < y < z,
Tags:
Difficulty: 700Level
,
Algebra
,
Combinations
,
Source: GMATPrepNow
GMATPrepNow
4
1164
by:
exc4libur
,
11 Oct 2019, 07:48
24
ER
Two trains, 100 miles apart, travelling towards each other on parallel
Tags:
Difficulty: 700Level
,
Algebra
,
Distance/Rate Problems
,
Source: Other  Please specify
DisciplinedPrep
4
805
by:
Harsh2111s
,
06 Oct 2019, 20:00
24
ER
x^2 + bx + 72 = 0 has two distinct integer roots; how many values are
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Other  Please specify
Bunuel
5
3926
by:
ruchik
,
31 Dec 2018, 22:25
24
ER
If y = x^2 + d x + 9 does not cut the xaxis, then which of the follow
Tags:
Difficulty: 700Level
,
Algebra
,
Coordinate Geometry
,
Source: Other  Please specify
Bunuel
9
1982
by:
bumpbot
,
14 Mar 2019, 11:36
24
ER
If (20) + (19) + (18) + (17) + . . .
Tags:
Difficulty: 700Level
,
Algebra
,
Sequences
,
Source: GMATPrepNow
GMATPrepNow
4
1123
by:
bumpbot
,
11 Jun 2019, 09:52
24
ER
If P^2QR=10, Q^2+PR=10, R^2+PQ=10 and R does not equal to Q
Tags:
Difficulty: 700Level
,
Algebra
,
Source: GMAT Club Tests
manalq8
6
6049
by:
nick1816
,
20 Apr 2019, 20:24
24
ER
The toll for crossing a certain bridge is $0.75 each crossin
Tags:
Difficulty: 700Level
,
Algebra
,
Min/Max Problems
,
Word Problems
,
Source: 800 Score
ajit257
8
10616
by:
bumpbot
,
20 May 2019, 18:36
24
ER
If the number 12341234B1234A, in which A and B represent digits, is di
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Veritas Prep
ynaikavde
13
4856
by:
exc4libur
,
15 Nov 2019, 06:56
24
ER
What is the sum of all the real values of x for which x4^2 + x4
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Other  Please specify
GMATinsight
5
1635
by:
LeoN88
,
15 May 2019, 05:17
23
ER
In the multiplication above, each letter stands for a differ
Tags:
Difficulty: 700Level
,
Arithmetic
,
Source: Manhattan GMAT
irda
9
8034
by:
gmatman1031
,
02 Feb 2019, 08:28
23
ER
how many trailing zero's in N = (5^5*10^5*15^5*20^5*25^5*30^5*35^5*40)
Tags:
Difficulty: 700Level
,
Arithmetic
,
Number Properties
,
Source: Other  Please specify
yezz
8
2128
by:
bumpbot
,
28 May 2019, 22:52
23
ER
In the sequence S, the difference between any two consecutive terms is
Tags:
Difficulty: 700Level
,
Algebra
,
Sequences
,
Source: eGMAT
EgmatQuantExpert
9
2782
by:
bumpbot
,
16 Jul 2019, 01:11
23
ER
Obtain the sum of all positive integers up to 1000, which
Tags:
Difficulty: 700Level
,
Arithmetic
,
Divisibility/Multiples/Factors
puma
18
17762
by:
bumpbot
,
23 Dec 2018, 05:01
23
ER
Set X of has an average of 61. If the largest element is 7 greater tha
Tags:
Difficulty: 700Level
,
Arithmetic
,
Number Properties
hazelnut
8
1682
by:
SAHILJPR
,
10 Jan 2018, 19:12
23
ER
The digital sum of a number is the sum of its digits. For how many of
Tags:
Difficulty: 700Level
,
Arithmetic
,
Divisibility/Multiples/Factors
,
Source: Other  Please specify
mmelendez
11
3676
by:
EMPOWERgmatRichC
,
19 Nov 2019, 14:57
23
ER
What is the sum of all consecutive multiples of 8 between 400 and 600,
Tags:
Difficulty: 700Level
,
Arithmetic
,
Divisibility/Multiples/Factors
,
Source: Economist GMAT Tutor
Bunuel
8
3839
by:
bumpbot
,
25 Sep 2018, 20:51
23
ER
A quadratic equation ax^2+bx+c=0 has two integral roots x1 and
Tags:
Difficulty: 700Level
,
Algebra
,
Roots
,
Source: eGMAT
mangamma
9
913
by:
PreiteeRanjan
,
30 May 2019, 02:07
23
Of the 3digit positive integers greater than 600, how many
Tags:
Difficulty: 700Level
,
Algebra
,
Arithmetic
,
Combinations
,
Source: Other  Please specify
chondro48
10
893
by:
lnm87
,
02 Sep 2019, 05:26
23
If the sum of 5 consecutive positive multiples of a prime number is 10
Tags:
Difficulty: 700Level
,
Algebra
,
Number Properties
,
Sequences
niteshwaghray
7
1840
by:
bumpbot
,
24 Feb 2019, 10:58
23
If g(x)= x^2 – 4bx + 9b^2, where b is any positive integer, then
Tags:
Difficulty: 700Level
,
Algebra
,
Functions and Custom Characters
,
Inequalities
,
Must or Could be True Questions
,
Source: Other  Please specify
niks18
9
1566
by:
syedazeem3
,
08 May 2018, 18:46
23
ER
For all numbers a and b, the operation is defined by ab = a^2  ab.
Tags:
Difficulty: 700Level
,
Algebra
,
Functions and Custom Characters
,
Source: Magoosh
Bunuel
9
6940
by:
Mohammadmo
,
11 Aug 2019, 02:55
23
ER
If triangle{AHE} is a right angle triangle and AH  BG  CF
Tags:
Difficulty: 700Level
,
Algebra
,
Fractions/Ratios/Decimals
,
Geometry
,
Source: Other  Please specify
chetan2u
9
1321
by:
bumpbot
,
02 Aug 2019, 11:11
23
Each of the four identical containers (A,B,C and D) contains ‘b’ balls
Tags:
Difficulty: 700Level
,
Algebra
,
Fractions/Ratios/Decimals
alphonsa
9
2597
by:
amarsinha
,
20 Aug 2019, 13:41
23
ER
If xy=x+y , what is x in terms of y?
Tags:
Difficulty: 700Level
,
Algebra
,
Source: Math Revolution
MathRevolution
14
1392
by:
exc4libur
,
13 Sep 2019, 06:22
22
ER
If (x + 2)^2 = 9 and (y + 3)^2 = 25, then what is the maximum value of
Tags:
Difficulty: 700Level
,
Algebra
,
Min/Max Problems
,
Source: Other  Please specify
Bunuel
5
5843
by:
shashankism
,
19 Nov 2018, 23:17
22
ER
For a certain set of numbers, if x is in the set, then both
Tags:
Difficulty: 700Level
,
Arithmetic
,
Source: GMAT Club Tests
tk1tez7777
5
3583
by:
Bunuel
,
04 Jul 2019, 01:17
22
ER
Patrick purchased 80 pencils and sold them at a loss
Tags:
Difficulty: 700Level
,
Algebra
Game
7
4843
by:
Twinklegowani
,
27 Oct 2018, 06:13
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