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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

If y = (5-x)^1/2 where x and y are integers, what is the [#permalink]
11 Dec 2012, 03:23

4

This post received KUDOS

00:00

A

B

C

D

E

Difficulty:

65% (hard)

Question Stats:

47% (02:08) correct
53% (01:29) wrong based on 110 sessions

If \(y = \sqrt{5-x}\) where x and y are positive integers, what is the remainder when x is divided by 5?

(1) x < 5

(2) y > 1

Another question from me. No OA as this is my own question. Please let me know if you dont agree with my answer and if so, the reason.. . Here goes.. Source : Me..

Re: If y = (5-x)^1/2 where x and y are integers, what is the [#permalink]
11 Dec 2012, 03:52

1

This post received KUDOS

Expert's post

1

This post was BOOKMARKED

If \(y = \sqrt{5-x}\) where x and y are positive integers, what is the remainder when x is divided by 5?

Since square root from a negative number is undefined and \(y\) is a positive integer, then \(5-x>0\) --> \(x<5\). Since also given that \(x\) is positive, then \(0<x<5\), thus \(x\) could be 1, 2, 3 or 4. Now, \(y\) would be an integer only for \(x=1\) or \(x=4\).

If \(x=1\), then \(y=2\). If \(x=4\), then \(y=1\).

Re: If y = (5-x)^1/2 where x and y are integers, what is the [#permalink]
11 Dec 2012, 09:47

1

This post received KUDOS

MacFauz wrote:

If \(y = \sqrt{5-x}\) where x and y are positive integers, what is the remainder when x is divided by 5?

(1) x < 5

(2) y > 1

Another question from me. No OA as this is my own question. Please let me know if you dont agree with my answer and if so, the reason.. . Here goes.. Source : Me..

Re: If y = (5-x)^1/2 where x and y are integers, what is the [#permalink]
10 Aug 2013, 06:56

y^2 = 5 -x

x= 5 - y^2

(1).

x=1,4 since x<5

(2).

y>1

x=1 hence REM=1

Hence (B) _________________

Rgds, TGC! _____________________________________________________________________ I Assisted You => KUDOS Please _____________________________________________________________________________

Re: If y = (5-x)^1/2 where x and y are integers, what is the [#permalink]
06 Oct 2014, 12:48

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. _________________

This week went in reviewing all the topics that I have covered in my previous study session. I reviewed all the notes that I have made and started reviewing the Quant...

I was checking my phone all day. I wasn’t sure when I would receive the admission decision from Tepper. I received an acceptance from Goizueta in the early morning...

I started running as a cross country team member since highshcool and what’s really awesome about running is that...you never get bored of it! I participated in...