BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Eleven members of Club A are also members of Club B, and

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Moderator
Posts: 2599
Joined: Sun Oct 29, 2017 2:08 pm
Followed by:2 members

Eleven members of Club A are also members of Club B, and

by AAPL » Tue Aug 28, 2018 5:31 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Veritas Prep

Eleven members of Club A are also members of Club B, and five members of Club B are also members of Club C. How many members of Club A are also members of Club C?

(1) Club B has 16 members.
(2) Exactly two people from Club C are also members of Club A.

OA B.
Top
Source: — Data Sufficiency |
User avatar
GMAT Instructor
Posts: 1449
Joined: Sat Oct 09, 2010 2:16 pm
Thanked: 59 times
Followed by:33 members

by fskilnik@GMATH » Thu Sep 06, 2018 5:42 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

AAPL wrote:Veritas Prep
Eleven members of Club A are also members of Club B, and five members of Club B are also members of Club C. How many members of Club A are also members of Club C?

(1) Club B has 16 members.
(2) Exactly two people from Club C are also members of Club A.
We consider the image attached.
\[? = x + y\]
\[\left. \begin{gathered}
y + z = 11 \hfill \\
y + w = 5 \hfill \\
\end{gathered} \right\}\,\,\,\,\left( * \right)\]
\[\left( 1 \right)\,\,\underline {B = 16} \,\,\,\left\{ \begin{gathered}
\,\,{\text{Take}}\,\,\left( {x,\underline {y,z,w,k} } \right) = \,\,\left( {0,\underline {4,6,1,5} } \right)\,\,\,{\text{viable}}\,\,\,\,\, \Rightarrow \,\,\,\,? = 0 + 4 = 4 \hfill \\
\,\,{\text{Take}}\,\,\left( {x,\underline {y,z,w,k} } \right) = \,\,\left( {1,\underline {4,6,1,5} } \right)\,\,\,{\text{viable}}\,\,\,\,\, \Rightarrow \,\,\,\,? = 1 + 4 = 5 \hfill \\
\end{gathered} \right.\]
\[\left( 2 \right)\,\,x + y = 2\,\,\,\, \Rightarrow \,\,\,\,? = 2\,\,\,\,\left( {{\text{immediately}}} \right)\,\,\,\,\]

This solution follows the notations and rationale taught in the GMATH method.

Regards,
fskilnik.




Image
Fabio Skilnik :: GMATH method creator ( Math for the GMAT)
English-speakers :: https://www.gmath.net
Portuguese-speakers :: https://www.gmath.com.br
Top
Post new topic Post Reply
• Page 1 of 1