GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 22 Oct 2019, 20:13

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

If the figure above shows three circles with diameters AB, BC and AC,

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58427
If the figure above shows three circles with diameters AB, BC and AC,  [#permalink]

Show Tags

New post 23 Aug 2018, 04:09
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

83% (01:21) correct 17% (02:02) wrong based on 27 sessions

HideShow timer Statistics

Math Expert
avatar
V
Joined: 02 Aug 2009
Posts: 8011
Re: If the figure above shows three circles with diameters AB, BC and AC,  [#permalink]

Show Tags

New post 23 Aug 2018, 05:51
Bunuel wrote:
If the figure above shows three circles with diameters AB, BC and AC, what is the area of the shaded region?

(1) AC/2 = BC
(2) BC = 3


Please refer the attached figure...
area of I = area of II = (area of bigger circle - area of III - area of IV )/2
we are looking for II + IV........... this requires us to know the radius of ll three circles...
AB=AC+BC, so just two values will be sufficient

(1) AC/2 = BC
nothing on numeric values
insuff
(2) BC = 3
nothing about AB
insuff

combined

BC=3 so AC = 2*3=6 and AB=6-3=3
sufficient as we can find all areas

C
Attachments

image013 %281%29.jpg
image013 %281%29.jpg [ 14.35 KiB | Viewed 365 times ]


_________________
GMAT Club Bot
Re: If the figure above shows three circles with diameters AB, BC and AC,   [#permalink] 23 Aug 2018, 05:51
Display posts from previous: Sort by

If the figure above shows three circles with diameters AB, BC and AC,

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne