GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 16 Oct 2018, 20:08

### 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

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

# If xy is not equal to 0, what is the value of 25x^2/y^2?

Author Message
TAGS:

### Hide Tags

Manager
Joined: 06 Feb 2010
Posts: 150
Schools: University of Dhaka - Class of 2010
GPA: 3.63
If xy is not equal to 0, what is the value of 25x^2/y^2?  [#permalink]

### Show Tags

Updated on: 27 Sep 2017, 02:34
00:00

Difficulty:

25% (medium)

Question Stats:

70% (01:06) correct 30% (01:27) wrong based on 154 sessions

### HideShow timer Statistics

If xy is not equal to 0, what is the value of $$\frac{25x^2}{y^2}$$?

(1) x = 3
(2) 5x - 2y = 0

_________________

Practice Makes a Man Perfect. Practice. Practice. Practice......Perfectly

Critical Reasoning: http://gmatclub.com/forum/best-critical-reasoning-shortcuts-notes-tips-91280.html

Collections of MGMAT CAT: http://gmatclub.com/forum/collections-of-mgmat-cat-math-152750.html

MGMAT SC SUMMARY: http://gmatclub.com/forum/mgmat-sc-summary-of-fourth-edition-152753.html

Sentence Correction: http://gmatclub.com/forum/sentence-correction-strategies-and-notes-91218.html

Arithmatic & Algebra: http://gmatclub.com/forum/arithmatic-algebra-93678.html

I hope these will help to understand the basic concepts & strategies. Please Click ON KUDOS Button.

Originally posted by monirjewel on 28 Oct 2010, 22:30.
Last edited by Bunuel on 27 Sep 2017, 02:34, edited 2 times in total.
Renamed the topic and edited the question.
Math Expert
Joined: 02 Sep 2009
Posts: 49915
If xy is not equal to 0, what is the value of 25x^2/y^2?  [#permalink]

### Show Tags

29 Oct 2010, 04:06
2
If xy is not equal to 0, what is the value of $$\frac{25x^2}{y^2}$$?

(1) x = 3 --> clearly insufficient as no info about y.

(2) 5x - 2y = 0 --> $$5x=2y$$ --> $$\frac{25x^2}{y^2}=\frac{(5x)^2}{y^2}=\frac{(2y)^2}{y^2}=\frac{4y^2}{y^2}=4$$. Sufficient.

_________________
CEO
Joined: 08 Jul 2010
Posts: 2537
Location: India
GMAT: INSIGHT
WE: Education (Education)
Re: If xy is not equal to 0, what is the value of 25x^2/y^2?  [#permalink]

### Show Tags

05 Feb 2016, 11:22
monirjewel wrote:
If xy is not equal to 0, what is the value of 25x^2/y^2?
(1) X=3
(2) 5x-2y=0

Question : what is the value of 25x^2/y^2?

Question Rephrased : x/y=??

Statement 1: x=3
x/y is unknown. Hence
NOT SUFFICIENT

Statement 2: 5x-2y=0
i.e. x/y = 2/5
SUFFICIENT

_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Non-Human User
Joined: 09 Sep 2013
Posts: 8421
Re: If xy is not equal to 0, what is the value of 25x^2/y^2?  [#permalink]

### Show Tags

27 Sep 2017, 01:59
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.
_________________
Re: If xy is not equal to 0, what is the value of 25x^2/y^2? &nbs [#permalink] 27 Sep 2017, 01:59
Display posts from previous: Sort by