NEW HERE? LEARN MORE
closeclose
Last visit was: 25 Apr 2024, 23:56 It is currently 25 Apr 2024, 23:56
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

If a square's side is increased from 5 units long to 6 units long, whi

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92914
Own Kudos [?]: 619075 [0]
Given Kudos: 81595
Send PM
CAT Tests Forum Quiz Mode
If a square's side is increased from 5 units long to 6 units long, whi [#permalink] New post   26 Dec 2017, 00:22
Expert Reply
00:00
A
B
C
D
E

Difficulty:

15% (low)

Question Stats:

80% (00:38) correct 20% (00:51) wrong based on 58 sessions
Hide Show timer Statistics
If a square's side is increased from 5 units long to 6 units long, which of the following is the percent by which the area is increased?

A. 1%
B. 4%
C. 11%
D. 36%
E. 44%
ShowHide Answer
Official Answer
E
User avatar
P
DavidTutorexamPAL
examPAL Representative
Joined: 07 Dec 2017
Posts: 1050
Own Kudos [?]: 1777 [0]
Given Kudos: 26
Send PM
Re: If a square's side is increased from 5 units long to 6 units long, whi [#permalink] New post   26 Dec 2017, 01:59
Bunuel wrote:
If a square's side is increased from 5 units long to 6 units long, which of the following is the percent by which the area is increased?

A. 1%
B. 4%
C. 11%
D. 36%
E. 44%


As this is a very simple cacluation, we'll just do it.
This is a Precise approach.

We're asked to calculate (increase from 5^2 to 6^2)/(area of 5^2)
This is (6^2 - 5^2)/5^2 = (36 - 25)/25 = 11/25 = 44/100 = 44%
(E) is our answer.
avatar
B
Tranquil Focus
Intern
Intern
Joined: 14 Jun 2017
Posts: 22
Own Kudos [?]: 10 [0]
Given Kudos: 3
Location: United States
Schools: Kellogg PT '21 (A) Booth PT '21 (M)
GMAT 1: 710 Q48 V38
GPA: 2.8
Send PM
If a square's side is increased from 5 units long to 6 units long, whi [#permalink] New post   26 Dec 2017, 02:21
Bunuel wrote:
If a square's side is increased from 5 units long to 6 units long, which of the following is the percent by which the area is increased?

A. 1%
B. 4%
C. 11%
D. 36%
E. 44%



Current Area= 5*5= 25
New Area= 6*6=36

% Change= (New Area- Current Area)/(Current Area)*100 = \(((36-25)/36)*100= (11/25)*100= 44\)%. Hence E.
User avatar
D
exc4libur
SVP
SVP
Joined: 24 Nov 2016
Posts: 1720
Own Kudos [?]: 1344 [0]
Given Kudos: 607
Location: United States
Send PM
Re: If a square's side is increased from 5 units long to 6 units long, whi [#permalink] New post   26 Dec 2017, 18:00
Bunuel wrote:
If a square's side is increased from 5 units long to 6 units long, which of the following is the percent by which the area is increased?

A. 1%
B. 4%
C. 11%
D. 36%
E. 44%



Area of a square: \(side^2\)

Square with side 5, has an area of: \(side^2=5^2=25\)
Square with side 6, has an area of: \(side^2=6^2=36\)

Percentage change: \(\frac{After-Before}{Before}=\frac{36-25}{25}=\frac{11}{25}=0.44\)=44%.

(E) is the answer.
GMAT Club Bot
gmatclubot
Re: If a square's side is increased from 5 units long to 6 units long, whi [#permalink]
26 Dec 2017, 18:00
Moderators:
Bunuel
Math Expert
92915 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions