Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 1612:00 PM EDT
-11:59 PM EDT
You’re first to know: Save $200 on GMAT prep starting tomorrow, 4/13. Get 6 official practice tests and study with real questions. Be ready to save!
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
13 Jun 2019, 00:13
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
67% (02:38) correct
33%
(02:49)
wrong
based on 144
sessions
History
Date
Time
Result
Not Attempted Yet
A rectangular tiled floor consists of 70 square tiles. The rectangular floor is being rearranged so that 2 tiles will be removed from each row of tiles and 4 more rows of tiles will be added. After the change in layout, the floor will still have 70 tiles, and it will still be a rectangle. How many rows were in the tile floor before the change in layout?
A. 4
B. 7
C. 10
D. 14
E. 28
A. 4
B. 7
C. 10
D. 14
E. 28
Archit3110
13 Jun 2019, 02:44
Kudos
Bookmarks
Bunuel
test with given options
(10+4)*(7-2) = 14*5 = 70
IMO C
13 Jun 2019, 02:59
Kudos
Bookmarks
Let number of rows = n, and number of tiles in each row= x
Given that- nx=70 and (n+4)(x-2)=70
(n+4)(x-2)=70
nx+4x-2n-8=70
70+4x-2n-8=70
2x-n=4
\(\frac{140}{n} - n = 4\)
n=10 and x=7
Given that- nx=70 and (n+4)(x-2)=70
(n+4)(x-2)=70
nx+4x-2n-8=70
70+4x-2n-8=70
2x-n=4
\(\frac{140}{n} - n = 4\)
n=10 and x=7
Bunuel
