Last visit was: 11 Dec 2024, 22:35 It is currently 11 Dec 2024, 22:35
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
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 11 Dec 2024
Posts: 97,815
Own Kudos:
685,172
 [4]
Given Kudos: 88,242
Products:
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 97,815
Kudos: 685,172
 [4]
Kudos
Add Kudos
4
Bookmarks
Bookmark this Post
User avatar
ThatDudeKnows
Joined: 11 May 2022
Last visit: 27 Jun 2024
Posts: 1,078
Own Kudos:
805
 [1]
Given Kudos: 79
Expert reply
Posts: 1,078
Kudos: 805
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Archit3110
User avatar
GMAT Club Legend
Joined: 18 Aug 2017
Last visit: 11 Dec 2024
Posts: 8,116
Own Kudos:
4,493
 [2]
Given Kudos: 243
Status:You learn more from failure than from success.
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1: 545 Q79 V79 DI73
GPA: 4
WE:Marketing (Energy)
Products:
GMAT Focus 1: 545 Q79 V79 DI73
Posts: 8,116
Kudos: 4,493
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Berdiyor
Joined: 02 Feb 2019
Last visit: 10 Dec 2024
Posts: 40
Own Kudos:
84
 [3]
Given Kudos: 14
Location: Uzbekistan
GMAT 1: 640 Q50 V25
GMAT 2: 670 Q51 V28
GPA: 3.4
Products:
GMAT 2: 670 Q51 V28
Posts: 40
Kudos: 84
 [3]
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Hello everyone,

The correct answer is B.
The detailed explanation of the solution is in the pic. attached
Attachments

1.jpg
1.jpg [ 98.94 KiB | Viewed 2808 times ]

User avatar
Iotaa
User avatar
LBS Moderator
Joined: 25 Apr 2020
Last visit: 15 Mar 2023
Posts: 137
Own Kudos:
135
 [2]
Given Kudos: 99
Location: India
Posts: 137
Kudos: 135
 [2]
1
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Bunuel

Two circles are inscribed in a rectangle, as shown above. What is the distance between the centers of these circles?

A. 2
B. \(\sqrt{5}\)
C. 3
D. \(\sqrt{10}\)
E. \(2\sqrt{5}\)

 


This question was provided by GMAT Club
for the GMAT Club World Cup Competition

Compete, Get Better, Win prizes and more

 



Attachment:
The attachment Untitled.png is no longer available

Refering to the picture, 3R (in red) = 3; R=1

Also, 4-2R=2.

Distance between the center will be 1ˆ2+2ˆ2= Dˆ2,

So D = \sqrt{5}

Option B is the correct answer
Attachments

WhatsApp Image 2022-07-21 at 8.59.06 PM.jpeg
WhatsApp Image 2022-07-21 at 8.59.06 PM.jpeg [ 69.7 KiB | Viewed 2771 times ]

User avatar
gmatophobia
User avatar
Quant Chat Moderator
Joined: 22 Dec 2016
Last visit: 11 Dec 2024
Posts: 3,124
Own Kudos:
6,949
 [1]
Given Kudos: 1,860
Location: India
Concentration: Strategy, Leadership
Products:
Posts: 3,124
Kudos: 6,949
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
In the figure below we extend the circle's radius to meet the sides and construct a right angled triangle as shown.

Attachment:
Screenshot 2022-07-21 214307.png
Screenshot 2022-07-21 214307.png [ 93.97 KiB | Viewed 2628 times ]

In \(\triangle ABC\) = \(\sqrt{(3-2r)^2 + (4-2r)^2}\) ----------- (1)

Now lets construct three triangles as shown below -

Attachment:
Screenshot 2022-07-21 214530.png
Screenshot 2022-07-21 214530.png [ 80.69 KiB | Viewed 2625 times ]

PM = 5 (3 - 4 -5 triplet)

Area of \(\triangle MPN\) = Area( \(\triangle MOP\) ) + Area( \(\triangle PON\) ) + Area( \(\triangle MON\) )

\(\frac{(4*3)}{2}\) = \(\frac{1}{2} * 4 * r +\frac{1}{2} * 3 * r + \frac{1}{2} * 5 * r\) = 6r

r = 1 -------------------- (2)

Substituting 2 in 1

AB =\( \sqrt{1^2 + 2^2}\) = \(\sqrt{5}\)

IMO B
avatar
soudipsengupta
Joined: 17 Sep 2020
Last visit: 15 Nov 2022
Posts: 61
Own Kudos:
132
 [1]
Given Kudos: 222
Posts: 61
Kudos: 132
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel

Two circles are inscribed in a rectangle, as shown above. What is the distance between the centers of these circles?

A. 2
B. \(\sqrt{5}\)
C. 3
D. \(\sqrt{10}\)
E. \(2\sqrt{5}\)

 


This question was provided by GMAT Club
for the GMAT Club World Cup Competition

Compete, Get Better, Win prizes and more

 



Attachment:
The attachment Untitled.png is no longer available

Please refer to the attachment for the diagram and solution
Attachments

Circle.jpg
Circle.jpg [ 173.6 KiB | Viewed 946 times ]

Moderator:
Math Expert
97815 posts