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

 It is currently 05 Dec 2019, 22:07

### 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

# 6/√5-√5/5=?

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 8231
GMAT 1: 760 Q51 V42
GPA: 3.82
6/√5-√5/5=?  [#permalink]

### Show Tags

23 May 2019, 01:45
00:00

Difficulty:

5% (low)

Question Stats:

86% (00:49) correct 14% (01:39) wrong based on 43 sessions

### HideShow timer Statistics

[GMAT math practice question]

$$\frac{6}{√5}-\frac{√5}{5}=?$$

$$A. 1$$

$$B. -1$$

$$C. √5$$

$$D. -√5$$

$$E. 2√5$$

_________________
MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $79 for 1 month Online Course" "Free Resources-30 day online access & Diagnostic Test" "Unlimited Access to over 120 free video lessons - try it yourself" Manager Joined: 29 Nov 2018 Posts: 84 Location: India GPA: 4 WE: Information Technology (Consulting) Re: 6/√5-√5/5=? [#permalink] ### Show Tags 23 May 2019, 13:28 MathRevolution wrote: [GMAT math practice question] $$\frac{6}{√5}-\frac{√5}{5}=?$$ $$A. 1$$ $$B. -1$$ $$C. √5$$ $$D. -√5$$ $$E. 2√5$$ Let $$\frac{6}{√5}-\frac{√5}{5}=X$$ now multiply with \sqrt{5} => 6 - 1 = X\sqrt{5} X = 5/\sqrt{5} X = \sqrt{5} Option C _________________ Hope it helps, Thanks, Mofe Bhatia Senior Manager Joined: 20 Mar 2018 Posts: 407 Location: Ghana Concentration: Finance, Real Estate Re: 6/√5-√5/5=? [#permalink] ### Show Tags 24 May 2019, 01:34 6/(root 5) - (root 5)/5 (root 5)/(root 5)6/(root 5) - (root 5)/5 6(root5)/5 - (root 5)/5 (6(root 5) - (root 5))/5 5(root 5)/5 => (root 5) Answer C Posted from my mobile device Manager Joined: 17 Jul 2018 Posts: 70 Location: India Concentration: Finance, Leadership Schools: Stern '22 (II) GMAT 1: 760 Q50 V44 6/√5-√5/5=? [#permalink] ### Show Tags 24 May 2019, 02:03 MathRevolution wrote: [GMAT math practice question] $$\frac{6}{√5}-\frac{√5}{5}=?$$ $$A. 1$$ $$B. -1$$ $$C. √5$$ $$D. -√5$$ $$E. 2√5$$ $$\frac{6}{√5}-\frac{√5}{5}$$ = $$\frac{(6√5-√5)}{5}$$ = $$\frac{5√5}{5}$$ = √5. C is the answer. Please take time to hit+1 Kudos Math Revolution GMAT Instructor Joined: 16 Aug 2015 Posts: 8231 GMAT 1: 760 Q51 V42 GPA: 3.82 6/√5-√5/5=? [#permalink] ### Show Tags 26 May 2019, 18:42 => $$\frac{6}{\sqrt{5}}-\frac{√5}{5}$$ $$= \frac{6√5}{√5√5}-\frac{√5}{5}$$ $$= \frac{6√5}{5}-\frac{√5}{5}$$ $$= \frac{5√5}{5} =√5$$ Therefore, the answer is C. Answer: C _________________ MathRevolution: Finish GMAT Quant Section with 10 minutes to spare The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only$79 for 1 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"
6/√5-√5/5=?   [#permalink] 26 May 2019, 18:42
Display posts from previous: Sort by

# 6/√5-√5/5=?

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne