GRE Prep 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.
A circular plate with a diameter of 20 inches is placed on a
[#permalink]
23 Apr 2018, 06:17
23 Apr 2018, 06:17
Expert Reply
00:00
Question Stats:
85% (00:20) correct
14% (01:35) wrong based on 7 sessions
Hide Show timer Statistics
A circular plate with a diameter of 20 inches is placed on a circular placemat with a diameter of 24 inches. What fraction of the placemat's surface area is not covered?
A. \(\frac{11}{144}\)
B. \(\frac{11}{36}\)
C. \(\frac{25}{36}\)
D. \(\frac{20}{24}\)
E. \(\frac{41}{44}\)
A. \(\frac{11}{144}\)
B. \(\frac{11}{36}\)
C. \(\frac{25}{36}\)
D. \(\frac{20}{24}\)
E. \(\frac{41}{44}\)
Re: A circular plate with a diameter of 20 inches is placed on a
[#permalink]
23 Apr 2018, 12:28
23 Apr 2018, 12:28
1
calculate area of circular plate and of placemat (remember to convert diameter to radius).
Subtract area of circular plate from placemat.
Divide the above answer by area of of placemat.
(In order to save time, leave pi as it is and cancel it out in the last step)
Subtract area of circular plate from placemat.
Divide the above answer by area of of placemat.
(In order to save time, leave pi as it is and cancel it out in the last step)
gmatclubot
Re: A circular plate with a diameter of 20 inches is placed on a [#permalink]
23 Apr 2018, 12:28
Moderators:
