Last visit was: 25 Jul 2024, 08:43 It is currently 25 Jul 2024, 08:43
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.
Close
Request Expert Reply
Confirm Cancel
SORT BY:
Date
Tags:
Show Tags
Hide Tags
Intern
Intern
Joined: 17 Jan 2017
Posts: 47
Own Kudos [?]: 120 [6]
Given Kudos: 4
Send PM
GMAT Tutor
Joined: 27 Oct 2017
Posts: 1895
Own Kudos [?]: 5803 [2]
Given Kudos: 238
WE:General Management (Education)
Send PM
Senior SC Moderator
Joined: 22 May 2016
Posts: 5325
Own Kudos [?]: 35785 [0]
Given Kudos: 9464
Send PM
Target Test Prep Representative
Joined: 04 Mar 2011
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Posts: 3036
Own Kudos [?]: 6629 [0]
Given Kudos: 1646
Send PM
Re: The area of field A is 30% greater than that of field B [#permalink]
Expert Reply
benejo wrote:
The area of field A is 30% greater than that of field B, and 35% less than that of field C. The area of C is what percent greater than the area of field B?

A. 25%
B. 50%
C. 53,8%
D. 100%
E. 200%


We can let the area of field B = n and thus the area of field A = 1.3n.

Since 1.3n is 35% less than the area of field C, we can create the equation:

1.3n = 0.65C

1.3n/0.65 = C

130n/65 = C

2n = C

We now can determine the area of C is what percent greater than the area of field B:

(2n - n)/n x 100 = 1 x 100 = 100 percent

Alternate Solution:

Let’s let the area of field B to be 100. Since area of field A is 30% greater than the area of field B, area of field A is 1.3 x 100 = 130. Let c denote the area of field C. Since area of field A is 35% less than field C, we must have

0.65c = 130

c - 130/0.65 = 200

Thus, the area of field C is [(200 - 100)/100] x 100 = 100% greater than the area of field A.

Answer: D
User avatar
Non-Human User
Joined: 09 Sep 2013
Posts: 34092
Own Kudos [?]: 853 [0]
Given Kudos: 0
Send PM
Re: The area of field A is 30% greater than that of field B [#permalink]
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
Re: The area of field A is 30% greater than that of field B [#permalink]
Moderator:
Math Expert
94614 posts