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 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
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.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
17 Jan 2016, 10:10
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
79% (01:29) correct
21%
(02:26)
wrong
based on 141
sessions
History
Date
Time
Result
Not Attempted Yet
The length of a rectangle is decreased by 15% and its width is increased by 40%. Does the area of the rectangle decrease or increase and by what percent?
A. Decreases by 19%
B. Decreases by 25%
C. Increases by 6%
D. Increases by 19%
E. Increases by 25%
A. Decreases by 19%
B. Decreases by 25%
C. Increases by 6%
D. Increases by 19%
E. Increases by 25%
FacelessMan
Joined: 19 Dec 2015
Last visit: 17 Jul 2020
Posts: 86
Own Kudos:
Given Kudos: 13
Location: United States
Schools: Duke '19 Kenan-Flagler '19
GMAT 1: 720 Q50 V38
GPA: 3.8
WE:Information Technology (Computer Software)
17 Jan 2016, 10:41
Kudos
Bookmarks
Let the length of the rectangle be 100x, and width be 100y. Area = 100x * 100y = 10000xy
Now after the change Length = 85x, and width = 140 y. Area = 11900xy
% Change = (11900xy - 10000xy)/(10000xy) = 19 % Increase. Hence D.
Now after the change Length = 85x, and width = 140 y. Area = 11900xy
% Change = (11900xy - 10000xy)/(10000xy) = 19 % Increase. Hence D.
18 Jan 2016, 23:35
Kudos
Bookmarks
Hi All,
This question can be solved in a variety of different ways, including various algebraic approaches and TESTing VALUES. Here's how you can use fractions to your advantage and save some time.
We're told that the length of a rectangle is decreased by 15% and its width is increased by 40%. We're asked if the area of the rectangle decreases or increases and by what percent.
The original area of the rectangle can be written as...
(L)(W) = Area
The two changes can be written as:
15% decrease = 8.5/10
40% increase = 14/10
After the changes occur, we have...
(8.5/10)(L)(14/10)(W) =
(8.5/10)(14/10)(L)(W) =
(8.5)(14)/100 x (L)(W) =
119/100 x (L)(W)
119/100 = a 19% increase
Final Answer:
GMAT assassins aren't born, they're made,
Rich
This question can be solved in a variety of different ways, including various algebraic approaches and TESTing VALUES. Here's how you can use fractions to your advantage and save some time.
We're told that the length of a rectangle is decreased by 15% and its width is increased by 40%. We're asked if the area of the rectangle decreases or increases and by what percent.
The original area of the rectangle can be written as...
(L)(W) = Area
The two changes can be written as:
15% decrease = 8.5/10
40% increase = 14/10
After the changes occur, we have...
(8.5/10)(L)(14/10)(W) =
(8.5/10)(14/10)(L)(W) =
(8.5)(14)/100 x (L)(W) =
119/100 x (L)(W)
119/100 = a 19% increase
Final Answer:
GMAT assassins aren't born, they're made,
Rich
