NEW HERE? LEARN MORE
closeclose
Last visit was: 27 Apr 2024, 04:24 It is currently 27 Apr 2024, 04:24
Decision Tracker
My Rewards
New posts
New comers' posts

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

For any integers x and y, min(x,y) and max(x,y) denote the minimum and

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
B
jfdelgado
Intern
Intern
Joined: 16 May 2018
Posts: 36
Own Kudos [?]: 70 [16]
Given Kudos: 32
Location: Peru
Send PM
For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink] New post   21 May 2018, 09:31
3
Kudos
13
Bookmarks
00:00
A
B
C
D
E

Difficulty:

55% (hard)

Question Stats:

47% (01:04) correct 53% (01:06) wrong based on 251 sessions
Hide Show timer Statistics
For any integers x and y, min(x,y) and max(x,y) denote the minimum and the maximum of x and y, respectively. For example, min(5,2)=2 and max(5,2)=5. For the integers a and b, what is the value of max(a,b)?


(1) a > b

(2) ab = −1
ShowHide Answer
Official Answer
B
Most Helpful Reply
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92952
Own Kudos [?]: 619352 [6]
Given Kudos: 81611
Send PM
CAT Tests Forum Quiz Mode
Re: For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink] New post   21 May 2018, 09:41
3
Kudos
3
Bookmarks
Expert Reply
For any integers x and y, min(x,y) and max(x,y) denote the minimum and the maximum of x and y, respectively. For example, min(5,2)=2 and max(5,2)=5. For the integers a and b, what is the value of max(a,b)?


(1) a > b --> max(a, b) = a but since we don't know the numerical value of a, then this statement is not sufficient.

(2) ab = −1. Since a and b are integers, then a = 1 and b = -1 or vise-versa. In any case, max(a, b) = 1. Sufficient.

Answer: B.

Similar questions to practice:
https://gmatclub.com/forum/max-x-y-is-d ... 28330.html
https://gmatclub.com/forum/for-any-inte ... 94998.html
https://gmatclub.com/forum/for-any-inte ... 61903.html

Hope it helps.
General Discussion
avatar
B
chandra004
Intern
Intern
Joined: 30 Nov 2016
Posts: 26
Own Kudos [?]: 14 [0]
Given Kudos: 351
GMAT 1: 650 Q47 V33
Send PM
Re: For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink] New post   02 Jun 2018, 11:11
Bunuel wrote:
For any integers x and y, min(x,y) and max(x,y) denote the minimum and the maximum of x and y, respectively. For example, min(5,2)=2 and max(5,2)=5. For the integers a and b, what is the value of max(a,b)?


(1) a > b --> max(a, b) = a but since we don't know the numerical value of a, then this statement is not sufficient.

(2) ab = −1. Since a and b are integers, then a = 1 and b = -1 or vise-versa. In any case, max(a, b) = 1. Sufficient.

Answer: B.

Similar questions to practice:
https://gmatclub.com/forum/max-x-y-is-d ... 28330.html
https://gmatclub.com/forum/for-any-inte ... 94998.html
https://gmatclub.com/forum/for-any-inte ... 61903.html

Hope it helps.


Hello Bunuel
I've one question here:-
for 2) even this is the possibility, a = -1/2 and b = 2 or a = -2 and b = 1/2. Here also we don't have definite value for a or b. Then this statement must not be sufficient?
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92952
Own Kudos [?]: 619352 [1]
Given Kudos: 81611
Send PM
CAT Tests Forum Quiz Mode
Re: For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink] New post   02 Jun 2018, 12:19
1
Kudos
Expert Reply
chandra004 wrote:
Bunuel wrote:
For any integers x and y, min(x,y) and max(x,y) denote the minimum and the maximum of x and y, respectively. For example, min(5,2)=2 and max(5,2)=5. For the integers a and b, what is the value of max(a,b)?


(1) a > b --> max(a, b) = a but since we don't know the numerical value of a, then this statement is not sufficient.

(2) ab = −1. Since a and b are integers, then a = 1 and b = -1 or vise-versa. In any case, max(a, b) = 1. Sufficient.

Answer: B.

Similar questions to practice:
https://gmatclub.com/forum/max-x-y-is-d ... 28330.html
https://gmatclub.com/forum/for-any-inte ... 94998.html
https://gmatclub.com/forum/for-any-inte ... 61903.html

Hope it helps.


Hello Bunuel
I've one question here:-
for 2) even this is the possibility, a = -1/2 and b = 2 or a = -2 and b = 1/2. Here also we don't have definite value for a or b. Then this statement must not be sufficient?


Notice that the function is given to be defined for integers only.
User avatar
P
MHIKER
Director
Director
Joined: 14 Jul 2010
Status:No dream is too large, no dreamer is too small
Posts: 972
Own Kudos [?]: 4929 [0]
Given Kudos: 690
Concentration: Accounting
Send PM
Re: For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink] New post   22 Dec 2020, 14:11
Top Contributor
jfdelgado wrote:
For any integers x and y, min(x,y) and max(x,y) denote the minimum and the maximum of x and y, respectively. For example, min(5,2)=2 and max(5,2)=5. For the integers a and b, what is the value of max(a,b)?


(1) a > b

(2) ab = −1


We need to figure out a definite value, not a variable.

(1) It gives "a" not any numerical value; Insufficient.

(2) \(ab=-1\), that is \(-1*1\), either \(a=-1\) or \(b=-1\) it will not matter as the will take the maximum value that will be definite 1. Sufficeint.

The answer is B
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32709
Own Kudos [?]: 822 [0]
Given Kudos: 0
Send PM
Re: For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink] New post   14 Feb 2022, 03:07
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
gmatclubot
Re: For any integers x and y, min(x,y) and max(x,y) denote the minimum and [#permalink]
14 Feb 2022, 03:07
Moderator:
Bunuel
Math Expert
92952 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions