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

 It is currently 17 Dec 2018, 09:02

### 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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### 10 Keys to nail DS and CR questions

December 17, 2018

December 17, 2018

06:00 PM PST

07:00 PM PST

Join our live webinar and learn how to approach Data Sufficiency and Critical Reasoning problems, how to identify the best way to solve each question and what most people do wrong.
• ### R1 Admission Decisions: Estimated Decision Timelines and Chat Links for Major BSchools

December 17, 2018

December 17, 2018

10:00 PM PST

11:00 PM PST

From Dec 5th onward, American programs will start releasing R1 decisions. Chat Rooms: We have also assigned chat rooms for every school so that applicants can stay in touch and exchange information/update during decision period.

# How many degrees is angle c?

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 51263
How many degrees is angle c?  [#permalink]

### Show Tags

22 Jan 2016, 09:24
00:00

Difficulty:

15% (low)

Question Stats:

90% (00:17) correct 10% (00:16) wrong based on 33 sessions

### HideShow timer Statistics

How many degrees is angle c?

(1) b is a right angle.
(2) a + b = 131°

Attachment:

2016-01-17_2317.png [ 1.47 KiB | Viewed 801 times ]

_________________
Intern
Joined: 19 Jan 2016
Posts: 45
How many degrees is angle c?  [#permalink]

### Show Tags

22 Jan 2016, 19:08
As the figure, (A+B+C) = 180, if we know (A+B), we know C

(1) B=90 => how about A? => no ideas about (A+B) => (1) alone not sufficient
(2) (A+B)=131 => clearly, C = 180 - 131 = a certain degree => (2) alone sufficient.

=> B is the answer choice.

Is this problem actually a 600-700 Q?

I think the only trick here is whether A, B and C are three adjacent supplementary angles or not (if not, A + B + C = un-specific degree and the problem can't be solve with both (1) and (2) and the answer choice must be E)
_________________

---------------------------------------------------------
Please kudos me if this helps. Thank you.

How many degrees is angle c? &nbs [#permalink] 22 Jan 2016, 19:08
Display posts from previous: Sort by