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In the figure above

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In the figure above [#permalink] New post 28 Dec 2016, 03:11
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Question Stats:

50% (01:39) correct 50% (00:18) wrong based on 2 sessions
Image

In the figure above, BP=CP. If X=120, then Y=

(A) 30
(B) 60
(C) 75
(D) 90
(E) 120
[Reveal] Spoiler: OA

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Re: In the figure above [#permalink] New post 29 Sep 2017, 07:24
Or there is a missing Y or there is a typo in the text!
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Re: In the figure above [#permalink] New post 29 Sep 2017, 07:36
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No typo. The question comes from the old paper test

Attachment:
screenshot.151.jpg
screenshot.151.jpg [ 16.37 KiB | Viewed 808 times ]


Usually, the questions are double checked before to post online, here. Of course, we can a mistake....but in general, the questions are scanned before very carefully.
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Re: In the figure above [#permalink] New post 29 Sep 2017, 08:55
is y adjacent to x?
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Re: In the figure above [#permalink] New post 29 Sep 2017, 09:39
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I do think they meant opposite to B
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Re: In the figure above [#permalink] New post 29 Sep 2017, 10:05
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IlCreatore wrote:
Or there is a missing Y or there is a typo in the text!


Plz see the diagram attached

Explanation as below-

If BP=CP

Therefore BPC is an isoscles triangle
Given, x=120

Angle BCP = 180-120 (since angle x+ angle BCP = 180)
=60
or angle BCP =Angle CBP (isosceles triangle)

or angle CBP =60 (180-120)

Therefore angle y = 60
Attachments

Angles.png
Angles.png [ 6.33 KiB | Viewed 792 times ]


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Re: In the figure above [#permalink] New post 29 Sep 2017, 10:13
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Great explanation.

+1 kudo
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Re: In the figure above [#permalink] New post 30 Sep 2017, 05:00
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Carcass wrote:
No typo. The question comes from the old paper test

Attachment:
screenshot.151.jpg


Usually, the questions are double checked before to post online, here. Of course, we can a mistake....but in general, the questions are scanned before very carefully.


I wasn't accusing the board. It was just an observation ;)
If I read what is Y and there is no Y in the figure, I get skeptical about the correctness of the question
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Re: In the figure above [#permalink] New post 30 Sep 2017, 05:20
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IlCreatore wrote:
Carcass wrote:
No typo. The question comes from the old paper test

Attachment:
screenshot.151.jpg


Usually, the questions are double checked before to post online, here. Of course, we can a mistake....but in general, the questions are scanned before very carefully.


I wasn't accusing the board. It was just an observation ;)
If I read what is Y and there is no Y in the figure, I get skeptical about the correctness of the question

Noooo absolutely. I know. :-D Moreover, I admit the question is not the top notch, nonetheless, it is an official one.

I was just saying that we really do as much as possible to have a plateau: no room for errors. Of course, we are humans and the mistake is just around the curve.

you and @pranab01 are doing an amazing job. Thank you so much.

Warmly regards :wink:
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Re: In the figure above   [#permalink] 30 Sep 2017, 05:20
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