|
|
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.
01 Mar 2019, 07:44
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
21% (01:50) correct
79%
(02:13)
wrong
based on 81
sessions
History
Date
Time
Result
Not Attempted Yet
GMATH practice exercise (Quant Class 18)
From the figure shown, each of N people will be asked to take 7 points out, so that the 3 points left form vertices of an equilateral triangle. If all of them proceed correctly, what is the minimum value of N to guarantee that at least two people will take out exactly the same 7 points?
(A) 13
(B) 14
(C) 15
(D) 16
(E) 17
From the figure shown, each of N people will be asked to take 7 points out, so that the 3 points left form vertices of an equilateral triangle. If all of them proceed correctly, what is the minimum value of N to guarantee that at least two people will take out exactly the same 7 points?
(A) 13
(B) 14
(C) 15
(D) 16
(E) 17
01 Mar 2019, 11:22
Kudos
Bookmarks
fskilnik
\(?\,\, = \,\,\left( {\# \,\,{\rm{possible}}\,\,\Delta \,\,{\rm{equilateral}}\,\,{\rm{configurations}}} \right)\,\,{\rm{ + }}\,\,{\rm{1}}\)
\(? = 15 + 1 = 16\)
The correct answer is (D).
We follow the notations and rationale taught in the GMATH method.
Regards,
Fabio.
OhsostudiousMJ
Joined: 28 Jan 2019
Last visit: 06 Apr 2024
Posts: 65
Own Kudos:
Given Kudos: 121
Location: India
Schools: ISB '21 (A) Great Lakes '21 (WD)
GMAT 1: 700 Q49 V36
GPA: 4
WE:Manufacturing and Production (Manufacturing)
02 Mar 2019, 09:47
Kudos
Bookmarks
fskilnik
Hi, please explain why 1 is added?
