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# find the value of Y in the below image Figure not DRAWN to

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Director
Joined: 07 Jun 2004
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Location: PA
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find the value of Y in the below image Figure not DRAWN to [#permalink]

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21 Jan 2005, 17:32
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

find the value of Y in the below image

Figure not DRAWN to scale
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t.jpg [ 11.9 KiB | Viewed 670 times ]

Current Student
Joined: 28 Dec 2004
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Location: New York City
Schools: Wharton'11 HBS'12
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21 Jan 2005, 18:02
is there something missing in the figure?
Director
Joined: 07 Jun 2004
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Location: PA
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Kudos [?]: 794 [0], given: 22

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21 Jan 2005, 18:14
i checked its ok nothing is missing in the fig
Current Student
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Posts: 3363
Location: New York City
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21 Jan 2005, 18:27
Ok Now i can see the whole figure....

well, lets look at the diagram as a trapozoid....

75+85+4x=360 slove

x= 200/4 x=50

y = 180-75-50= 55
SVP
Joined: 03 Jan 2005
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21 Jan 2005, 22:51
My method is a bit slow, but easy to understand, I think.

(180-75-85)+(180-2x)+(180-2x)=180
x=50
y=180-75-50=55
Director
Joined: 27 Dec 2004
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22 Jan 2005, 08:39
rxs0005 wrote:
find the value of Y in the below image

Figure not DRAWN to scale

rxs0005, please post the image again. I think i must have made a silly mistake in adding/subtracting again.
Manager
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22 Jan 2005, 08:55
55 for me too.

Tricky question......

I solved it as :

75+x+y = 180

y+(y-10)+(180- 2x) = 180

Solved both equations and got y = 55
Director
Joined: 21 Sep 2004
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22 Jan 2005, 09:39
HongHu wrote:
My method is a bit slow, but easy to understand, I think.

(180-75-85)+(180-2x)+(180-2x)=180
x=50
y=180-75-50=55

how did you get 180-2x twice.. one is for the inner triangle.. i am unable to understand the second one..
SVP
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22 Jan 2005, 23:11
I was using the left little triangle. The left corner can be obtained from the big triangle. The up corner plus 2x is a straight line (180) and the right corner plus two x is a straight line too.
22 Jan 2005, 23:11
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