Forum Home > GMAT > Quantitative > Problem Solving (PS)
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.
Oct 0309:00 AM PDT
-12:00 PM PDT
Are you ready to take the next step in your academic and professional journey? If you’re aspiring to join one of the top 15 MBA programs, we’ve got an exciting opportunity just for you! Welcome to the GMAT Club's Free Interview Prep Event
Oct 1010:00 AM EDT
-09:00 PM EDT
Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
Oct 1010:00 AM EDT
-11:00 AM EDT
Have you ever wondered how to score a PERFECT 805 on the GMAT? Meet Julia, a banking professional who used the Target Test Prep course to achieve this incredible feat. Julia's story is nothing short of an inspiration.
Oct 1110:00 AM EDT
-11:00 AM EDT
Think a 100% GMAT Verbal score is out of your reach? Target Test Prep will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Oct 1211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Oct 13
11:00 AM IST
-01:00 PM IST
Attend this session to evaluate your current skill level, learn process skills, and solve through tough Arithmetic questions 
Oct 1311:30 AM EDT
-12:30 PM EDT
Is INSEAD your dream b-school and you're looking for solid prep and application strategies to get there? Check out Barkavi’s end-to-end journey to know how she did! Get insights into the INSEAD admissions process, know what Adcoms look at, and more!
Oct 1405:30 AM PDT
-07:30 AM PDT
We know Strengthen and Weaken questions account for more than 50% of the CR questions on the GMAT. With CR becoming even more important on GMAT Focus, it's time you strengthen your weaknesses with an approach that improves your solving time and accuracy!
After a one-piece circular tablecloth of maximum possible area was cut
[#permalink]
23 May 2020, 08:37
23 May 2020, 08:37
11
Bookmarks
Expert Reply
Show timer
00:00
A
B
C
D
E
Difficulty:
25%
(medium)
Question Stats:
70% (01:15) correct
30%
(01:11)
wrong
based on 403
sessions
After a one-piece circular tablecloth of maximum possible area was cut from a rectangular piece of material, what was the number of square inches of material that remained?
(1) The piece of material was 48 inches wide and 56 inches long before the tablecloth was cut.
(2) The radius of the tablecloth was 24 inches.
DS20411
(1) The piece of material was 48 inches wide and 56 inches long before the tablecloth was cut.
(2) The radius of the tablecloth was 24 inches.
DS20411
Re: After a one-piece circular tablecloth of maximum possible area was cut
[#permalink]
23 May 2020, 10:41
23 May 2020, 10:41
To maximize the area of the circle, diameter of the cloth = d = min(a,b) , where a and b are the sides of the rectangular piece
Area of remaining portion = \(a*b - \frac{\pi*d^2}{4 }\)
Statement 1=
We know a and b; hence we can find d.
Sufficient
Statement 2-
We know d; hence we can find the shorter side of the rectangle. We have no idea about the longer side.
Insufficient
Area of remaining portion = \(a*b - \frac{\pi*d^2}{4 }\)
Statement 1=
We know a and b; hence we can find d.
Sufficient
Statement 2-
We know d; hence we can find the shorter side of the rectangle. We have no idea about the longer side.
Insufficient
Attachments
Untitled.png [ 10.22 KiB | Viewed 6106 times ]
Re: After a one-piece circular tablecloth of maximum possible area was cut
[#permalink]
04 Jan 2022, 00:20
04 Jan 2022, 00:20
I'm sorry, but the solution is still not clear to me. How is the answer A and not C?
