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

It is currently 18 Sep 2018, 18:27

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

If the area of triangle ABC is 15, side AC has length 10, and segment

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49206
If the area of triangle ABC is 15, side AC has length 10, and segment  [#permalink]

Show Tags

New post 23 Aug 2018, 04:12
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

89% (00:37) correct 11% (01:53) wrong based on 19 sessions

HideShow timer Statistics

Image
If the area of triangle ABC is 15, side AC has length 10, and segment BD is perpendicular to segment AC, what is the length of segment BD?


A. 9
B. 6
C. 5
D. 3
E. 1.5


Attachment:
image006.jpg
image006.jpg [ 2.32 KiB | Viewed 385 times ]

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

BSchool Forum Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3128
Location: India
GPA: 3.12
Premium Member CAT Tests
If the area of triangle ABC is 15, side AC has length 10, and segment  [#permalink]

Show Tags

New post 23 Aug 2018, 04:21
Image

Given: Area of triangle(ABC) = 15 | Length of side(AC) = 10

The perpendicular to the segment AC, BD is the height of the triangle.
Here, AC is the length of the base. Area = \(\frac{1}{2} * AC * BD = 15\).

Therefore, the length of the segment BD \(= \frac{15*2}{AC} = \frac{30}{10}\) = 3(Option D)
_________________

You've got what it takes, but it will take everything you've got

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4011
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: If the area of triangle ABC is 15, side AC has length 10, and segment  [#permalink]

Show Tags

New post 23 Aug 2018, 07:27
Bunuel wrote:
Image
If the area of triangle ABC is 15, side AC has length 10, and segment BD is perpendicular to segment AC, what is the length of segment BD?


A. 9
B. 6
C. 5
D. 3
E. 1.5


Attachment:
image006.jpg


\(\frac{1}{2}*AC*BD = 15\)

Or, \(10*BD = 30\)

Or, \(BD = 3\) , Answer must be (D)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Target Test Prep Representative
User avatar
G
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 3484
Location: United States (CA)
Re: If the area of triangle ABC is 15, side AC has length 10, and segment  [#permalink]

Show Tags

New post 26 Aug 2018, 19:20
Bunuel wrote:
Image
If the area of triangle ABC is 15, side AC has length 10, and segment BD is perpendicular to segment AC, what is the length of segment BD?


A. 9
B. 6
C. 5
D. 3
E. 1.5


Attachment:
image006.jpg


Since BD is perpendicular to AC and if we consider AC as the base of the triangle, then BD is the height of the triangle. Thus, we have:

½(AC)(BD) = Area of triangle ABC

½(10)(BD) = 15

5(BD) = 15

BD = 3

Answer: D
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: If the area of triangle ABC is 15, side AC has length 10, and segment &nbs [#permalink] 26 Aug 2018, 19:20
Display posts from previous: Sort by

If the area of triangle ABC is 15, side AC has length 10, and segment

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

Events & Promotions

PREV
NEXT


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®.