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# In the figure, AOB is a straight line. What is the average of the four

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Math Expert
Joined: 02 Sep 2009
Posts: 58400
In the figure, AOB is a straight line. What is the average of the four  [#permalink]

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Updated on: 15 Jul 2019, 03:52
00:00

Difficulty:

15% (low)

Question Stats:

100% (00:36) correct 0% (00:00) wrong based on 14 sessions

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In the figure, AOB is a straight line. What is the average of the four numbers a, b, c, d ?

A. 45

B. $$\frac{360}{7}$$

C. 60

D. 90

E. 120

Source: Nova GMAT
Difficulty Level: 600

Attachment:

lines (2).jpg [ 18.04 KiB | Viewed 272 times ]

_________________

Originally posted by Bunuel on 09 Oct 2018, 01:12.
Last edited by SajjadAhmad on 15 Jul 2019, 03:52, edited 1 time in total.
Intern
Joined: 15 Dec 2012
Posts: 19
Re: In the figure, AOB is a straight line. What is the average of the four  [#permalink]

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09 Oct 2018, 04:32
a+b+c+d=180 degree
(a+b+c+d)/4=45
Option A
Re: In the figure, AOB is a straight line. What is the average of the four   [#permalink] 09 Oct 2018, 04:32
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