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# Three lines intersect in the figure above. What is the value of x + y?

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Math Expert
Joined: 02 Sep 2009
Posts: 54544
Three lines intersect in the figure above. What is the value of x + y?  [#permalink]

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19 Jul 2017, 02:53
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Difficulty:

5% (low)

Question Stats:

97% (00:23) correct 3% (00:08) wrong based on 68 sessions

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Three lines intersect in the figure above. What is the value of x + y?

(A) 170
(B) 160
(C) 150
(D) 140
(E) 120

Attachment:

2017-07-19_1351.png [ 6.76 KiB | Viewed 1189 times ]

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Re: Three lines intersect in the figure above. What is the value of x + y?  [#permalink]

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19 Jul 2017, 03:01
Bunuel wrote:

Three lines intersect in the figure above. What is the value of x + y?

(A) 170
(B) 160
(C) 150
(D) 140
(E) 120

Attachment:
2017-07-19_1351.png

Total angle made by a straight line = 180 degrees

So, x+y+ 30 = 180

hence, x + y = 150
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Re: Three lines intersect in the figure above. What is the value of x + y?  [#permalink]

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25 Jul 2017, 11:05
Bunuel wrote:

Three lines intersect in the figure above. What is the value of x + y?

(A) 170
(B) 160
(C) 150
(D) 140
(E) 120

A straight angle is 180 degrees, so we see that x + y + 30 = 180; thus, x + y = 150.

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Re: Three lines intersect in the figure above. What is the value of x + y?  [#permalink]

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28 Jul 2017, 23:26
The angle in a straight line always sums up to 180.

So, x+y+30 = 180
x+y = 150(Option C)
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Re: Three lines intersect in the figure above. What is the value of x + y?  [#permalink]

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29 Jul 2017, 02:57
Bunuel wrote:

Three lines intersect in the figure above. What is the value of x + y?

(A) 170
(B) 160
(C) 150
(D) 140
(E) 120

Attachment:
2017-07-19_1351.png

Angle along a straight line = 180 deg

Now x+ y + 30 = 180
So, x+y = 150

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Re: Three lines intersect in the figure above. What is the value of x + y?   [#permalink] 29 Jul 2017, 02:57
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