Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 29 May 2017, 14:17

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

PS: Geometry parallel lines

Author Message
Director
Joined: 20 Jul 2004
Posts: 592
Followers: 2

Kudos [?]: 138 [0], given: 0

Show Tags

06 Sep 2004, 21:36
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

A Princeton Question
Attachments

Parallel.JPG [ 12.51 KiB | Viewed 948 times ]

Director
Joined: 16 Jun 2004
Posts: 891
Followers: 3

Kudos [?]: 63 [0], given: 0

Show Tags

06 Sep 2004, 22:19
Z=45, then C=180-45=135.
C=B =135
X=80, then A= 180-80=100

A+B+C = 135+135+100 = 370.
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5045
Location: Singapore
Followers: 31

Kudos [?]: 376 [0], given: 0

Show Tags

07 Sep 2004, 02:05
a = 180-80 = 100
b = 180-45 = 135
c = 180-45 = 135

total 370
Manager
Joined: 02 Apr 2004
Posts: 222
Location: Utrecht
Followers: 1

Kudos [?]: 21 [0], given: 0

Show Tags

07 Sep 2004, 14:20

Would this be classified as an easy question on the real GMAT?

Regards,

Alex
Director
Joined: 08 Jul 2004
Posts: 596
Followers: 2

Kudos [?]: 234 [0], given: 0

Show Tags

07 Sep 2004, 14:48
Of course 370 but what is worrying me is
x should be equal to z, if you remember theorems.
S
Manager
Joined: 05 Sep 2004
Posts: 97
Followers: 1

Kudos [?]: 3 [0], given: 0

Show Tags

07 Sep 2004, 15:58
Yeah, if x is not equal to z, then c is not equal to b. Apparently, while the figure is not drawn to scale, it is also not drawn to angles.

Also, are the two parallel lines actually supposed to be parallels?

If, z = 45, then c = 135.

If x = 80, a = 100 = b.

Then, a + b + c = 335.
Director
Joined: 20 Jul 2004
Posts: 592
Followers: 2

Kudos [?]: 138 [0], given: 0

Show Tags

07 Sep 2004, 17:13
saurya_s wrote:
what is the source of this question?

Its a Princeton 2004 CD adaptive exam question. I was surprised to see such substandard question from princeton. Even though it says that "the diagram is not drawn to scale", there may be more than one correction we can apply (see attached picture), but only one of them was present as an answer choice.

OA given is as everyone said: (E). 370.
And Princeton's explanation is, "Use the rule of 180. If z = 45, then both b and c must be 180 - 45 = 135. That's 270 degrees right there. since x = 80, a must be equal to 180-80 = 100. Thus a+b+c = 370".

I was too confused, spent 4 minutes and was adamant not to move, but later realised there is no one to complain/prove the point to.
When b+c exceeded 270, I chose 370 and moved on.
There are many problems like this which would make you think that the ETS guys have lost sense. Probably, it is just a trap to make you loose time and control. We should choose the "best possible" answer and move on.
Attachments

Parallel_Ans.JPG [ 28.66 KiB | Viewed 909 times ]

07 Sep 2004, 17:13
Display posts from previous: Sort by