It is currently 22 Jan 2019, 11:42
My Tests

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Which is greater x+y or 90

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Moderator
Moderator
User avatar
Joined: 18 Apr 2015
Posts: 5343
Followers: 84

Kudos [?]: 1094 [0], given: 4975

CAT Tests
Which is greater x+y or 90 [#permalink] New post 20 Oct 2018, 07:12
Expert's post
00:00

Question Stats:

92% (00:18) correct 7% (00:00) wrong based on 14 sessions
Attachment:
#GREpracticequestion Which is greater x+y or 90.jpg
#GREpracticequestion Which is greater x+y or 90.jpg [ 15.31 KiB | Viewed 138 times ]


Quantity A
Quantity B
x+y
90°


Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________

Get the 2 FREE GREPrepclub Tests

1 KUDOS received
Director
Director
Joined: 20 Apr 2016
Posts: 788
Followers: 7

Kudos [?]: 561 [1] , given: 101

CAT Tests
Re: x+y [#permalink] New post 20 Oct 2018, 20:04
1
This post received
KUDOS
Carcass wrote:
Attachment:
triangle.jpg


Quantity A
Quantity B
x+y
90°


Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.



Since sum of the angles of a \(\triangle\)= 180°

given one angle is 90°, so the sum of other two angles i.e. x° + y° < 90° ( Since y° don't constitute the full angle)

Hence Option B
_________________

If you found this post useful, please let me know by pressing the Kudos Button

1 KUDOS received
Senior Manager
Senior Manager
Joined: 09 Nov 2018
Posts: 496
Followers: 0

Kudos [?]: 17 [1] , given: 1

CAT Tests
Re: x+y [#permalink] New post 11 Jan 2019, 21:47
1
This post received
KUDOS
pranab01 wrote:


Since sum of the angles of a \(\triangle\)= 180°

given one angle is 90°, so the sum of other two angles i.e. x° + y° = 90°

Option C

No, may be you are confused with right triangle and the obtuse triangle. Obtuse triangle is part of right triangle.

Y is not the full angle of right triangle.

In right triangle,
90 = x + (y+something)

hence, 90>x+y

Answer B.
Supreme Moderator
Joined: 01 Nov 2017
Posts: 305
Followers: 3

Kudos [?]: 84 [0], given: 1

CAT Tests
Re: x+y [#permalink] New post 11 Jan 2019, 22:20
Expert's post
Carcass wrote:
Attachment:
The attachment triangle.jpg is no longer available


Quantity A
Quantity B
x+y
90°


Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.



Look at the attached figure..

triangle ABC is right angled triangle with angle B as 90.
Sum of angles of ABC will be 180, so \(A + B+C=180........z+y+90+x=180......z+(y+x)=90......y+x=90-z\)
since z is a positive quantity, x+y will be LESS than 90..

Hence, 90 > x+y.....B>A

B
Attachments

trianglegre.jpg
trianglegre.jpg [ 11.46 KiB | Viewed 169 times ]


_________________

Some useful Theory.
1. Arithmetic and Geometric progressions : https://greprepclub.com/forum/progressions-arithmetic-geometric-and-harmonic-11574.html#p27048
2. Effect of Arithmetic Operations on fraction : https://greprepclub.com/forum/effects-of-arithmetic-operations-on-fractions-11573.html?sid=d570445335a783891cd4d48a17db9825
3. Remainders : https://greprepclub.com/forum/remainders-what-you-should-know-11524.html
4. Number properties : https://greprepclub.com/forum/number-property-all-you-require-11518.html
5. Absolute Modulus and Inequalities : https://greprepclub.com/forum/absolute-modulus-a-better-understanding-11281.html

Director
Director
Joined: 20 Apr 2016
Posts: 788
Followers: 7

Kudos [?]: 561 [0], given: 101

CAT Tests
Re: x+y [#permalink] New post 12 Jan 2019, 04:52
AE wrote:
pranab01 wrote:


Since sum of the angles of a \(\triangle\)= 180°

given one angle is 90°, so the sum of other two angles i.e. x° + y° = 90°

Option C

No, may be you are confused with right triangle and the obtuse triangle. Obtuse triangle is part of right triangle.

Y is not the full angle of right triangle.

In right triangle,
90 = x + (y+something)

hence, 90>x+y

Answer B.


Sorry my mistake. Thanks
_________________

If you found this post useful, please let me know by pressing the Kudos Button

Re: x+y   [#permalink] 12 Jan 2019, 04:52
Display posts from previous: Sort by

Which is greater x+y or 90

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.