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

It is currently 18 Jun 2019, 00:01

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

What is the measure of angle B in triangle ABC? (1) The ratio of the

  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: 55638
What is the measure of angle B in triangle ABC? (1) The ratio of the  [#permalink]

Show Tags

New post 13 Sep 2018, 05:00
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

72% (00:48) correct 28% (01:09) wrong based on 40 sessions

HideShow timer Statistics

Intern
Intern
User avatar
B
Joined: 07 Jun 2018
Posts: 20
Location: India
Concentration: Marketing, International Business
GPA: 3.9
WE: Marketing (Insurance)
GMAT ToolKit User
Re: What is the measure of angle B in triangle ABC? (1) The ratio of the  [#permalink]

Show Tags

New post 13 Sep 2018, 05:24
Bunuel wrote:
What is the measure of angle B in triangle ABC?

(1) The ratio of the angles in triangle ABC is 3 : 4 : 5
(2) BC < AB < AC

1) If the ratio of angles is known. We know sum of the three angles as 180.
So, 3a+4a+5a = 180. So, a could be calculated. Hence, all the three angles could be calculated, leave just B. Hence, sufficient.
2) Just by knowing that three sides are not equal, don't give any information about the exact length of sides or exact angles of a triangle. Hence, insufficient.

Hence, A.
_________________

Give a Kudo, If I deserve it.



Target 750+
  • 17th June 2018 - Diagnostic Test - Kaplan Premier 2015 - 570
  • 10th Aug 2018 - Veritas 1 - 650 (Q51,V29)
  • 17th Aug 2018 - Veritas 2 - 670 (Q49,V33)
  • 24th Aug 2018 - Veritas 3 - 650 (Q49,V30)
  • 1st Sep 2018 - Veritas 4 - 680 (Q51,V33)
  • 12th Aug 2018 - Veritas 5 - 690 (Q51,V34)
  • 30th Sep 2018 - GMAT Official Prep - 640 (Q50,V26)

What do you think? Will I achieve my target score?
Manager
Manager
avatar
G
Joined: 02 Aug 2015
Posts: 155
Re: What is the measure of angle B in triangle ABC? (1) The ratio of the  [#permalink]

Show Tags

New post 13 Sep 2018, 06:28
1
Bunuel wrote:
What is the measure of angle B in triangle ABC?

(1) The ratio of the angles in triangle ABC is 3 : 4 : 5
(2) BC < AB < AC


Statement 1 - Since the sum of all angles of triangle is 180, we can calculate the individual angles using the given ratio. The angles are 75,60, and 45. Yet, this gives no information about angle B. Not sufficient.

Statement 2 - No information about angles. Not sufficient.

Using both statements together, we can say B=angle opposite to largest side=AC. So B is the largest angle, i.e 75 degs.

Hence C.

Cheers!
Manager
Manager
User avatar
S
Joined: 24 Dec 2016
Posts: 96
Location: India
Concentration: Finance, General Management
WE: Information Technology (Computer Software)
Re: What is the measure of angle B in triangle ABC? (1) The ratio of the  [#permalink]

Show Tags

New post 13 Sep 2018, 07:43
abhishekrukhaiyar wrote:
Bunuel wrote:
What is the measure of angle B in triangle ABC?

(1) The ratio of the angles in triangle ABC is 3 : 4 : 5
(2) BC < AB < AC

1) If the ratio of angles is known. We know sum of the three angles as 180.
So, 3a+4a+5a = 180. So, a could be calculated. Hence, all the three angles could be calculated, leave just B. Hence, sufficient.
2) Just by knowing that three sides are not equal, don't give any information about the exact length of sides or exact angles of a triangle. Hence, insufficient.

Hence, A.



I think it should be C.

From stmt. 1, although we can calculate the 3 angles, we can't predict the measure of angle B per se. It could be 45 or 60 or 75.
From stmt. 2, we know side opposite to angle a (BC) < side opposite to angle c (AB) < Side opposite angle b (AC) but the measurements aren't calculable.

Using both, we know the measures and also that angle b is the largest angle.
GMAT Club Bot
Re: What is the measure of angle B in triangle ABC? (1) The ratio of the   [#permalink] 13 Sep 2018, 07:43
Display posts from previous: Sort by

What is the measure of angle B in triangle ABC? (1) The ratio of the

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


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