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NOTE: Figure not drawn to scale. If line l and line m never insect an

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NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 22 Aug 2018, 02:52
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A
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E

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NOTE: Figure not drawn to scale.

If line l and line m never intersect and a = 34°, what is the value of b?

A. 146
B. 90
C. 68
D. 45
E. 34

Attachment:
image009.jpg
image009.jpg [ 1.24 KiB | Viewed 643 times ]

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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 22 Aug 2018, 02:57
Bunuel wrote:
Image
NOTE: Figure not drawn to scale.

If line l and line m never insect and a = 34°, what is the value of b?

A. 146
B. 90
C. 68
D. 45
E. 34

Attachment:
image009.jpg


Given, line l and line m never intersect implies that m||n

So, alternate angles are equal, hence b=a=34°

Ans. (E)
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 22 Aug 2018, 03:00
Line L and M never intersect. Implies that Line L and M are parallel.

Also, angle a and angle b are alternate angles. a = b.
Therefore a = b = 34.

E is the answer.

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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 22 Aug 2018, 07:16
l and line m never insect means lines are parallel. So if angle a=angle b. B=34.
Answer: E
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 23 Aug 2018, 07:56
Hi Bunuel

I feel like something else is missing in the question. It says figure not drawn to scale and says the lines never intersect. That doesn't mean that the lines are parallel. They appear to be parallel but it's also possible that they are not parallel. Shouldn't there be an option "Cannot be determined" in this case which is the right answer?
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 23 Aug 2018, 08:28
1
rajudantuluri wrote:
Hi Bunuel

I feel like something else is missing in the question. It says figure not drawn to scale and says the lines never intersect. That doesn't mean that the lines are parallel. They appear to be parallel but it's also possible that they are not parallel. Shouldn't there be an option "Cannot be determined" in this case which is the right answer?


Hi rajudantuluri,
Refer the highlighted text, In case two lines are not parallel, that means they intersect somewhere in the xy-plane. If they intersect then they are not parallel.
So, the only possibility: They are parallel.
(You may draw two lines with different angles, then extend them in both forward and backward direction, they will certainly intersect).
Irrespective of whether the figure is NTS or exact, when two lines never intersect then they are parallel.
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 23 Aug 2018, 09:00
The clouds are cleared now :) Thanks PKN!


PKN wrote:
rajudantuluri wrote:
Hi Bunuel

I feel like something else is missing in the question. It says figure not drawn to scale and says the lines never intersect. That doesn't mean that the lines are parallel. They appear to be parallel but it's also possible that they are not parallel. Shouldn't there be an option "Cannot be determined" in this case which is the right answer?


Hi rajudantuluri,
Refer the highlighted text, In case two lines are not parallel, that means they intersect somewhere in the xy-plane. If they intersect then they are not parallel.
So, the only possibility: They are parallel.
(You may draw two lines with different angles, then extend them in both forward and backward direction, they will certainly intersect).
Irrespective of whether the figure is NTS or exact, when two lines never intersect then they are parallel.
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 02 Oct 2018, 07:02
1
Bunuel wrote:
Image
NOTE: Figure not drawn to scale.

If line l and line m never insect and a = 34°, what is the value of b?

A. 146
B. 90
C. 68
D. 45
E. 34

Attachment:
image009.jpg


Dear Moderator,
Came across this question, small typo is the question above, you may wish to correct the same , I guess you meant to write intersect well as it has turned out to be something else. Hope you will look into this. Thank you.
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 02 Oct 2018, 07:06
stne wrote:
Bunuel wrote:
Image
NOTE: Figure not drawn to scale.

If line l and line m never insect and a = 34°, what is the value of b?

A. 146
B. 90
C. 68
D. 45
E. 34

Attachment:
image009.jpg


Dear Moderator,
Came across this question, small typo is the question above, you may wish to correct the same , I guess you meant to write intersect well as it has turned out to be something else. Hope you will look into this. Thank you.

_______________
Edited. Thank you.
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an  [#permalink]

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New post 02 Oct 2018, 08:36
line l and m are parallel
so angle a and b are vertical angles and a=b
so b=34
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Re: NOTE: Figure not drawn to scale. If line l and line m never insect an &nbs [#permalink] 02 Oct 2018, 08:36
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