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Are l1 and l2 parallel?

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Intern
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Joined: 27 Mar 2017
Posts: 3

Kudos [?]: 1 [0], given: 5

Are l1 and l2 parallel? [#permalink]

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New post 28 Mar 2017, 13:04
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Difficulty:

  35% (medium)

Question Stats:

58% (00:27) correct 42% (00:37) wrong based on 69 sessions

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Are l1 and l2 parallel?

(1) l1 intersects l3 at a 45° angle.

(2) l3 intersects l2 at a 45° angle.





Thank you :!:
[Reveal] Spoiler: OA

Kudos [?]: 1 [0], given: 5

Manager
Manager
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S
Joined: 05 Apr 2014
Posts: 149

Kudos [?]: 10 [0], given: 255

Location: India
Concentration: Economics, International Business
Schools: ISB '19, Fox"19
GMAT 1: 660 Q48 V33
GPA: 3
 [#permalink]

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New post 28 Mar 2017, 13:12
The lines can be parallel ir perpendicular

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Kudos [?]: 10 [0], given: 255

Manager
Manager
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S
Joined: 25 Nov 2015
Posts: 226

Kudos [?]: 63 [0], given: 238

Location: India
GPA: 3.64
WE: Engineering (Energy and Utilities)
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Re: Are l1 and l2 parallel? [#permalink]

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New post 07 Sep 2017, 10:11
jrpf08 wrote:
Are l1 and l2 parallel?

(1) l1 intersects l3 at a 45° angle.

(2) l3 intersects l2 at a 45° angle.


Thank you :!:


Please refer the attachment.
Each of the lines intersecting could be l1, l3.
Hence answer is E
Attachments

Untitled.jpg
Untitled.jpg [ 17.73 KiB | Viewed 277 times ]


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When the going gets tough, the tough gets going...

Kudos [?]: 63 [0], given: 238

Director
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P
Joined: 04 Dec 2015
Posts: 696

Kudos [?]: 299 [0], given: 261

Location: India
Concentration: Technology, Strategy
Schools: ISB '19, IIMA , IIMB, XLRI
WE: Information Technology (Consulting)
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Are l1 and l2 parallel? [#permalink]

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New post 08 Sep 2017, 07:11
jrpf08 wrote:
Are l1 and l2 parallel?

(1) l1 intersects l3 at a 45° angle.

(2) l3 intersects l2 at a 45° angle.





Thank you :!:

(1) l1 intersects l3 at a 45° angle.

Does not provide any information about l2. Hence I is Not sufficient.

(2) l3 intersects l2 at a 45° angle.

Does not provide any information about l1. Hence II is Not sufficient.

Combined (1) and (2);

When we draw the lines we get, l1 and l2 can be either perpendicular or parallel.

We are getting more than one answer. Therefore Answer E.

Answer (E)...

Kudos [?]: 299 [0], given: 261

Are l1 and l2 parallel?   [#permalink] 08 Sep 2017, 07:11
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