GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 18 Aug 2019, 19:05

### 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

# What is the value of xy?

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 57030
What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 00:45
00:00

Difficulty:

15% (low)

Question Stats:

95% (01:04) correct 5% (01:22) wrong based on 44 sessions

### HideShow timer Statistics

What is the value of xy?

A. 2400
B. 3200
C. 4800
D. 6300
E. 7200

Attachment:

#GREpracticequestion What is the value of xy.jpg [ 26.06 KiB | Viewed 491 times ]

_________________
Intern
Joined: 14 Sep 2014
Posts: 12
Location: India
Schools: IIM
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 00:58
The angles of an octagon are all equal and is 120 degrees each

Complementary angle sum is 180
So outside angle is 60 deg

X= 120
Y = 60

Xy = 7200 = E

Posted from my mobile device
Director
Joined: 03 Jun 2019
Posts: 849
Location: India
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 01:23
Bunuel wrote:

What is the value of xy?

A. 2400
B. 3200
C. 4800
D. 6300
E. 7200

Attachment:
#GREpracticequestion What is the value of xy.jpg

Since y =60
x = 180-60 =120
xy = 120 *60= 7200

IMO E
_________________
"Success is not final; failure is not fatal: It is the courage to continue that counts."

Please provide kudos if you like my post.

My GMAT Resources: -

Efficient Learning
Manager
Joined: 08 Jan 2018
Posts: 98
Location: India
GPA: 4
WE: Information Technology (Computer Software)
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 01:27
We can divide the figure in Hexagon and a triangle.
For Hexagon, each interior angle x= $$\frac{(6-2)}{6}$$ * 180 = 120
For Triangle, each interior angle y = 60

Thus, x*y = 120*60 = 7200

Please hit kudos if you like the solution.
Senior Manager
Joined: 16 Jan 2019
Posts: 408
Location: India
Concentration: General Management
WE: Sales (Other)
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 02:12
x is the interior angle of a regular hexagon. So x=120

y is the interior angle of an equilateral triangle. So y=60

xy=120*60=7200

Posted from my mobile device
Intern
Joined: 16 Apr 2019
Posts: 22
Location: India
GMAT 1: 690 Q42 V40
GPA: 3.9
WE: Web Development (Computer Software)
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 02:24
Since all the angles of the triangle are equal therefore value of y=60.Now sum of suplimentery angle are 180 therefore x=120
So correct answere must be 7200(E)
Intern
Joined: 13 Jul 2019
Posts: 15
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 03:18
The top part of the figure is a regular hexagon. Each angle of a hexagon is 120.

So, x = 120
y = 60 (linear pair)

xy = 120 x 60 = 7200.

Note: The sum of interior angles of an n-sided polygon = (n - 2)180

Please give kudos if you liked the solution.

Deepti Singh
Master Trainer - GMAT
Manya - The Princeton Review
Manager
Joined: 27 Mar 2016
Posts: 110
Re: What is the value of xy?  [#permalink]

### Show Tags

17 Jul 2019, 08:07
angles of regular hexagon = x=120 each
Sum of angle of triangle =180
each angle y =60
hence xy =7200
D
Re: What is the value of xy?   [#permalink] 17 Jul 2019, 08:07
Display posts from previous: Sort by