Last visit was: 28 Mar 2025, 09:43 It is currently 28 Mar 2025, 09:43
Home
GMAT
Messages
Tests
Schools
Reviews
Rewards
Chat
My Profile
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
   1  ...  57   58   59   60   61  ...  406   
User avatar
AG2907
User avatar
Joined: 12 Jan 2023
Last visit: 16 May 2024
Posts: 170
Own Kudos:
72
Given Kudos: 53
Posts: 170
Kudos: 72
GMAT Questions Chat Group 31 May 2023, 22:32
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Shobhit28
Yes
Then what would be the answer?
User avatar
wickedvikram
User avatar
Joined: 08 Jun 2008
Last visit: 16 Oct 2024
Posts: 176
Own Kudos:
104
Given Kudos: 79
Location: India
Concentration: Finance, General Management
Products:
My Reviews
Posts: 176
Kudos: 104
GMAT Questions Chat Group Updated on: 01 Jun 2023, 00:53
Originally posted by wickedvikram on 01 Jun 2023, 00:50.
Last edited by wickedvikram on 01 Jun 2023, 00:53, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatophobia
PS Question 1 - May 31 Let x be a two-digit number. If the sum of the digits of x is 9, then the sum of the digits of the number (x + 10) is (A) 1 (B) 8 (C) 10 (D) either 8 or 10 (E) either 1 or 10 Source: Others | Difficulty: Hard
E

gmatophobia
DS Question 1 - May 31 Is p > q ? (1) p^2 > q (2) p^3 < q Source: Expert’s Global | Difficulty: Hard
E; -ve or fraction
User avatar
sharad1s
User avatar
Joined: 09 May 2023
Last visit: 29 Mar 2024
Posts: 66
Own Kudos:
34
Given Kudos: 6
Posts: 66
Kudos: 34
GMAT Questions Chat Group 01 Jun 2023, 02:56
Kudos
Add Kudos
Bookmarks
Bookmark this Post
mysterymanrog
Consider the case of x=18 In this case, x+10=28, which means sum of digits 10. Consider the case of x=90 x+10=100 the sum of digits is 1. E
let the number be 10x+y , add 10 to it, it becomes 10x+(y+10), assume that after this operation , the two digit no is of form 10a+b, now compare 10x+10+y with 10a+b , we get , a=x+1 and y=b , so the sum of its digit i.e a+b =x+y+10 =9+1=10
User avatar
gmatophobia
User avatar
Quant Chat Moderator
Joined: 22 Dec 2016
Last visit: 27 Mar 2025
Posts: 3,115
Own Kudos:
7,972
Given Kudos: 1,860
Location: India
Concentration: Strategy, Leadership
Products:
GMAT Club Tests Forum Quiz
Posts: 3,115
Kudos: 7,972
GMAT Questions Chat Group Updated on: 02 Jun 2023, 04:26
Originally posted by gmatophobia on 02 Jun 2023, 04:23.
Last edited by gmatophobia on 02 Jun 2023, 04:26, edited 2 times in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatophobia
DS Question 1 - May 31 Is p > q ? (1) p^2 > q (2) p^3 < q Source: Expert’s Global | Difficulty: Hard
Show SpoilerOA
E

gmatophobia
PS Question 1 - May 31 Let x be a two-digit number. If the sum of the digits of x is 9, then the sum of the digits of the number (x + 10) is (A) 1 (B) 8 (C) 10 (D) either 8 or 10 (E) either 1 or 10 Source: Others | Difficulty: Hard
Show SpoilerOA
E

DS Question 1 - June 6

For each landscaping job that takes more than 4 hours, a certain contractor charges a total of r dollars for the first 4 hours plus 0.2*r dollars for each additional hour or fraction of an hour, where r > 100, Did a particular landscaping job take more than 10 hours.

(1) The contractor charges a total of $288 for the job.
(2) The contractor charges a total of 2.4r dollars for the job.

Source: Official Guide | Difficulty: Hard

PS Question 1 - June 6

9 people, including 3 couples, are to be seated in a row of 9 chairs. What is the probability that only one couple is sitting together

A. 1/63
B. 1/6
C. 8/21
D. 61/126
E. 7/9

Source: Others | Difficulty: Hard
User avatar
sg_mba
User avatar
Joined: 27 May 2023
Last visit: 07 Apr 2024
Posts: 20
Own Kudos:
5
Given Kudos: 11
Location: India
Posts: 20
Kudos: 5
GMAT Questions Chat Group Updated on: 02 Jun 2023, 04:55
Originally posted by sg_mba on 02 Jun 2023, 04:54.
Last edited by sg_mba on 02 Jun 2023, 04:55, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatophobia
DS Question 1 - June 6 For each landscaping job that takes more than 4 hours, a certain contractor charges a total of r dollars for the first 4 hours plus 0.2*r dollars for each additional hour or fraction of an hour, where r > 100, Did a particular landscaping job take more than 10 hours. (1) The contractor charges a total of $288 for the job. (2) The contractor charges a total of 2.4r dollars for the job. Source: Official Guide | Difficulty: Hard
B

A is not sufficient because value of r is unknown
User avatar
wickedvikram
User avatar
Joined: 08 Jun 2008
Last visit: 16 Oct 2024
Posts: 176
Own Kudos:
104
Given Kudos: 79
Location: India
Concentration: Finance, General Management
Products:
My Reviews
Posts: 176
Kudos: 104
GMAT Questions Chat Group 02 Jun 2023, 07:07
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatophobia
PS Question 1 - June 6 9 people, including 3 couples, are to be seated in a row of 9 chairs. What is the probability that only one couple is sitting together A. 1/63 B. 1/6 C. 8/21 D. 61/126 E. 7/9 Source: Others | Difficulty: Hard
Hi gmatphobia
I checked twice but I’m getting 11/63. Could you point out the error in below.
P(Only 1C) = P(T)-[p(0C)+P(2+ C)]
{9!-[(9!-8!*2!) + 6!*4!]} / 9! = 11/63
User avatar
wickedvikram
User avatar
Joined: 08 Jun 2008
Last visit: 16 Oct 2024
Posts: 176
Own Kudos:
104
Given Kudos: 79
Location: India
Concentration: Finance, General Management
Products:
My Reviews
Posts: 176
Kudos: 104
GMAT Questions Chat Group Updated on: 02 Jun 2023, 09:52
Originally posted by wickedvikram on 02 Jun 2023, 09:42.
Last edited by wickedvikram on 02 Jun 2023, 09:52, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Got it. It’s C - 8/21

P(only 1C) = 3{P(1+ C)-[2*P(only 2C)+P(only 3C)]}
P(only 3C) = 6!*2!*2!*2!/9!
P(only 2C) = P(2+ C)-P(only 3C)= (7!*2!*2!-6!*2!*2!*2!)/9! (for only 1 pair of 2couple, *3 for all )
P(1+ C)=2*8!/9! (for only 1 couple, *3 for all )
Substitute in first eqn to get 8/21
User avatar
Anki111
User avatar
Joined: 06 Jan 2023
Last visit: 29 Mar 2024
Posts: 78
Own Kudos:
35
Given Kudos: 384
Posts: 78
Kudos: 35
GMAT Questions Chat Group Updated on: 02 Jun 2023, 23:28
Originally posted by Anki111 on 02 Jun 2023, 23:26.
Last edited by Anki111 on 02 Jun 2023, 23:28, edited 2 times in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
What is the value of x?

(1) x−2x=1
�
−
2
�
=
1

(2) xx=1

What is the value of x? (1) x^(-2x) = 1 (2) x^x = 1

can we take zero to the power zero as 1?
User avatar
vdhanuka
User avatar
Joined: 10 Jan 2022
Last visit: 30 Jan 2025
Posts: 43
Own Kudos:
31
Given Kudos: 6
Posts: 43
Kudos: 31
GMAT Questions Chat Group Updated on: 02 Jun 2023, 23:44
Originally posted by vdhanuka on 02 Jun 2023, 23:40.
Last edited by vdhanuka on 02 Jun 2023, 23:44, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
c

for 1 it could be 1 as well as-1

Anki111
can we take zero to the power zero as 1?
if this is the case then it should be E right ?
User avatar
Anki111
User avatar
Joined: 06 Jan 2023
Last visit: 29 Mar 2024
Posts: 78
Own Kudos:
35
Given Kudos: 384
Posts: 78
Kudos: 35
GMAT Questions Chat Group Updated on: 03 Jun 2023, 00:09
Originally posted by Anki111 on 03 Jun 2023, 00:08.
Last edited by Anki111 on 03 Jun 2023, 00:09, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
the answer is B

BUT if we consider zero to the power zero ..then it should be E
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 15 Feb 2025
Posts: 825
Own Kudos:
683
Given Kudos: 559
Location: Italy
Schools: HEC (A) LBS (D) ESSEC (A)
GPA: 3.8
Schools: HEC (A) LBS (D) ESSEC (A)
Posts: 825
Kudos: 683
GMAT Questions Chat Group 03 Jun 2023, 00:10
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Anki111
can we take zero to the power zero as 1?
No, the gmat does not use zero to the power of zero
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 15 Feb 2025
Posts: 825
Own Kudos:
683
Given Kudos: 559
Location: Italy
Schools: HEC (A) LBS (D) ESSEC (A)
GPA: 3.8
Schools: HEC (A) LBS (D) ESSEC (A)
Posts: 825
Kudos: 683
GMAT Questions Chat Group 03 Jun 2023, 00:11
Kudos
Add Kudos
Bookmarks
Bookmark this Post
B looks surficient for this

x^x=1

x can only be 1, as if it is -1 it does not change signs
User avatar
Anki111
User avatar
Joined: 06 Jan 2023
Last visit: 29 Mar 2024
Posts: 78
Own Kudos:
35
Given Kudos: 384
Posts: 78
Kudos: 35
GMAT Questions Chat Group 03 Jun 2023, 00:12
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Yea i got B as well, just clarifying the doubt
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 15 Feb 2025
Posts: 825
Own Kudos:
683
Given Kudos: 559
Location: Italy
Schools: HEC (A) LBS (D) ESSEC (A)
GPA: 3.8
Schools: HEC (A) LBS (D) ESSEC (A)
Posts: 825
Kudos: 683
GMAT Questions Chat Group 03 Jun 2023, 00:13
Kudos
Add Kudos
Bookmarks
Bookmark this Post
and btw, 0^0 is undefined
User avatar
Anki111
User avatar
Joined: 06 Jan 2023
Last visit: 29 Mar 2024
Posts: 78
Own Kudos:
35
Given Kudos: 384
Posts: 78
Kudos: 35
GMAT Questions Chat Group 03 Jun 2023, 00:13
Kudos
Add Kudos
Bookmarks
Bookmark this Post
No, it is undefined and can be 1 depends on what you are asking
User avatar
mysterymanrog
User avatar
CR Forum Moderator
Joined: 25 Jan 2022
Last visit: 15 Feb 2025
Posts: 825
Own Kudos:
683
Given Kudos: 559
Location: Italy
Schools: HEC (A) LBS (D) ESSEC (A)
GPA: 3.8
Schools: HEC (A) LBS (D) ESSEC (A)
Posts: 825
Kudos: 683
GMAT Questions Chat Group 03 Jun 2023, 00:13
Kudos
Add Kudos
Bookmarks
Bookmark this Post
because if you consider: 0^(1-1) which implies that 0^0=0/0

so that is why gmat does not use it
User avatar
vdhanuka
User avatar
Joined: 10 Jan 2022
Last visit: 30 Jan 2025
Posts: 43
Own Kudos:
31
Given Kudos: 6
Posts: 43
Kudos: 31
GMAT Questions Chat Group 03 Jun 2023, 00:35
Kudos
Add Kudos
Bookmarks
Bookmark this Post
yes then the answer stands B
User avatar
Anki111
User avatar
Joined: 06 Jan 2023
Last visit: 29 Mar 2024
Posts: 78
Own Kudos:
35
Given Kudos: 384
Posts: 78
Kudos: 35
GMAT Questions Chat Group 03 Jun 2023, 00:36
Kudos
Add Kudos
Bookmarks
Bookmark this Post
To practice quant questions, which test prep has the closest gmat like questions, anyone ?
User avatar
Anki111
User avatar
Joined: 06 Jan 2023
Last visit: 29 Mar 2024
Posts: 78
Own Kudos:
35
Given Kudos: 384
Posts: 78
Kudos: 35
GMAT Questions Chat Group 03 Jun 2023, 01:12
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Is x/y > 0? (1) x - y > 0 (2) xy > 0
User avatar
sg_mba
User avatar
Joined: 27 May 2023
Last visit: 07 Apr 2024
Posts: 20
Own Kudos:
5
Given Kudos: 11
Location: India
Posts: 20
Kudos: 5
GMAT Questions Chat Group Updated on: 03 Jun 2023, 01:42
Originally posted by sg_mba on 03 Jun 2023, 01:38.
Last edited by sg_mba on 03 Jun 2023, 01:42, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
wickedvikram
P(only 1C) = 3{P(1+ C)-[2*P(only 2C)+P(only 3C)]} P(only 3C) = 6!*2!*2!*2!/9! P(only 2C) = P(2+ C)-P(only 3C)= (7!*2!*2!-6!*2!*2!*2!)/9! (for only 1 pair of 2couple, *3 for all ) P(1+ C)=2*8!/9! (for only 1 couple, *3 for all ) Substitute in first eqn to get 8/21
Can you explain this in words?

Anki111
What is the value of x? (1) x^(-2x) = 1 (2) x^x = 1
D
   1  ...  57   58   59   60   61  ...  406   
Moderator:
MBAACCOUNT2025
General GMAT Forum Moderator
288 posts