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

It is currently 19 May 2019, 09:38

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.

Close

Request Expert Reply

Confirm Cancel

Two diagonals of a rhombus are 72 cm and 30cm respectively. What is it

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
S
Joined: 19 Dec 2016
Posts: 47
Location: India
Concentration: Technology, Leadership
WE: Consulting (Computer Software)
Two diagonals of a rhombus are 72 cm and 30cm respectively. What is it  [#permalink]

Show Tags

New post 14 Jul 2017, 14:28
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

100% (01:18) correct 0% (00:00) wrong based on 5 sessions

HideShow timer Statistics

Two diagonals of a rhombus are 72 cm and 30cm respectively. What is its perimeter?

A. 136cm
B. 156cm
C. 144cm
D. 121cm
E. 133cm


Kudo please if you liked the ques.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________
If you want to appreciate, just click on Kudos.
Manager
Manager
avatar
P
Joined: 14 Oct 2015
Posts: 249
GPA: 3.57
Reviews Badge
Two diagonals of a rhombus are 72 cm and 30cm respectively. What is it  [#permalink]

Show Tags

New post 14 Jul 2017, 16:27
GTExl wrote:
Two diagonals of a rhombus are 72 cm and 30cm respectively. What is its perimeter?

A. 136cm
B. 156cm
C. 144cm
D. 121cm
E. 133cm


Kudo please if you liked the ques.


It should be B.

The diagonals of a rhombus split the rhombus into 4 equal triangles, each with base and height half that of the diagonal. Hypotenuse of this triangle is one side of the triangle, lets call it \(X\).

Applying pythagoras theorem,

\(X^2 = 36^2 + 15^2\)

\(X^2 = 3^2 (12^2 + 5^2)\)

\(X^2 = 3^2(169)\)

\(X^2 = 3^2 * 13^2\)

\(X = 3 * 13 = 39.\)

Perimeter would be 4 times \(X\)

\(4 * 39 = 156\)
_________________
Please hit Kudos if this post helped you inch closer to your GMAT goal.
Procrastination is the termite constantly trying to eat your GMAT tree from the inside.
There is one fix to every problem, working harder!
Director
Director
User avatar
D
Joined: 05 Mar 2015
Posts: 998
Re: Two diagonals of a rhombus are 72 cm and 30cm respectively. What is it  [#permalink]

Show Tags

New post 14 Jul 2017, 18:47
GTExl wrote:
Two diagonals of a rhombus are 72 cm and 30cm respectively. What is its perimeter?

A. 136cm
B. 156cm
C. 144cm
D. 121cm
E. 133cm


Kudo please if you liked the ques.



PFA below solution

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

Attachments

GMAT.jpg
GMAT.jpg [ 40.53 KiB | Viewed 2967 times ]

GMAT Club Bot
Re: Two diagonals of a rhombus are 72 cm and 30cm respectively. What is it   [#permalink] 14 Jul 2017, 18:47
Display posts from previous: Sort by

Two diagonals of a rhombus are 72 cm and 30cm respectively. What is it

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.