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.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
$84 + an extra $10 off for the first month of EMPOWERgmat access. Train to be ready for Round 3 Deadlines with EMPOWERgmat's Score Booster. Ends April 21st Code: GCENHANCED
What people who reach the high 700's do differently? We're going to share insights, tips, and strategies from data we collected on over 50,000 students who used examPAL. Save your spot today!
Join the Live Chat April 24th at 8 am PT. Learn the best strategies for acing the Verbal section. From Sentence Correction tactics to 3 keys for solving Reading Comprehension questions and tips for Critical Reasoning questions.
Join an exclusive workshop for GMAT Club members and learn how to cut your preparation time by 50% and still reach a 700+ on the GMAT. Limited for the first 99 registrants. Register today!
Learn the best strategies for acing the Verbal section. From Sentence Correction tactics to 3 keys for solving Reading Comprehension questions and tips for Critical Reasoning questions. Video Premiere April 23rd at 8am PT
In the figure, ABCD is a rectangle. The area of quadrilateral EBFD is
[#permalink]
Show Tags
17 Mar 2019, 23:51
00:00
A
B
C
D
E
Difficulty:
45% (medium)
Question Stats:
64% (02:37) correct 36% (01:48) wrong based on 14 sessions
HideShow timer Statistics
In the figure, ABCD is a rectangle. The area of quadrilateral EBFD is one-half the area of the rectangle ABCD. Which one of the following is the value of AD ?
Re: In the figure, ABCD is a rectangle. The area of quadrilateral EBFD is
[#permalink]
Show Tags
18 Mar 2019, 06:34
Top Contributor
Bunuel wrote:
In the figure, ABCD is a rectangle. The area of quadrilateral EBFD is one-half the area of the rectangle ABCD. Which one of the following is the value of AD ?
In the figure, ABCD is a rectangle. The area of quadrilateral EBFD is
[#permalink]
Show Tags
18 Mar 2019, 06:43
Top Contributor
Bunuel wrote:
In the figure, ABCD is a rectangle. The area of quadrilateral EBFD is one-half the area of the rectangle ABCD. Which one of the following is the value of AD ?
#GREpracticequestion In the figure, ABCD is a rectangle..jpg
APPROACH #2:
Let AD have length x Let AB have length y
Area of rectangle ABCD = (base)(height) = xy
Since ABCD is a rectangle, we know that sides ED and BF are parallel This means quadrilateral EBFD is a TRAPEZOID Let y be the height of the trapezoid This means ED and BF are the two bases of the trapezoid
Area of trapezoid = (base1 + base2)(height)/2 = (3 + 4)(y)/2 = 3.5y
The area of quadrilateral EBFD is one-half the area of the rectangle ABCD. We can write: 3.5y = (1/2)xy Multiply both sides by 2 to get: 7y = xy Divide both sides by y to get: 7 = x
Which one of the following is the value of AD ? Since AD has length x, we know that AD = 7
close
64% (02:37) correct 
