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What is the value of a?

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Math Expert
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V
Joined: 02 Sep 2009
Posts: 50044
What is the value of a?  [#permalink]

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New post 16 Apr 2018, 01:00
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

88% (00:18) correct 13% (00:30) wrong based on 46 sessions

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Senior DS Moderator
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D
Joined: 27 Oct 2017
Posts: 905
Location: India
Concentration: International Business, General Management
GPA: 3.64
WE: Business Development (Energy and Utilities)
Premium Member CAT Tests
Re: What is the value of a?  [#permalink]

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New post 16 Apr 2018, 01:06
Director
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G
Joined: 31 Oct 2013
Posts: 652
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: What is the value of a?  [#permalink]

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New post 16 Apr 2018, 02:40
Bunuel wrote:
Image
What is the value of a?

A. 20
B. 30
C. 40
D. 60
E. 90


Attachment:
Triangle.png


we know that the sum of all the angles of a triangle is 180
So, a+2a+3a=180
a=30

Thus, the correct answer is B.
GMAT Club Bot
Re: What is the value of a? &nbs [#permalink] 16 Apr 2018, 02:40
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