Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 26 Nov 2015, 09:01

# Happy Thanksgiving:

All GMAT Club Tests are Open and Free today

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# board game prob.

Author Message
TAGS:
Manager
Joined: 24 Nov 2010
Posts: 209
Location: United States (CA)
Concentration: Technology, Entrepreneurship
Schools: Ross '15, Duke '15
Followers: 2

Kudos [?]: 55 [0], given: 7

board game prob. [#permalink]  11 Dec 2011, 09:24
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions
A certain board game has a row of squares numbered 1 to 100. If a game piece is placed on a random square and then moved 7 consecutive spaces in a random direction, what is the probability the piece ends no more than 7 spaces from the square numbered 49?
(A) 7%
(B) 8%
(C) 14%
(D) 15%
(E) 28%
Intern
Joined: 22 Nov 2011
Posts: 8
Location: United States
Schools: Carroll '15
GMAT Date: 01-12-2012
GPA: 3.17
WE: Sales (Investment Banking)
Followers: 0

Kudos [?]: 7 [0], given: 1

Re: board game prob. [#permalink]  11 Dec 2011, 10:38
E?

1-P trick

Prob that you don't land within 14 spaces of 49 (1 to 34, so tech 35 and 64 to 100, so 37 spots- together 72 spots out of 100

1-72%= 28%

Manager
Joined: 26 Apr 2011
Posts: 230
Followers: 0

Kudos [?]: 34 [0], given: 12

Re: board game prob. [#permalink]  11 Dec 2011, 22:06
OA is E

required prob is 7 spaces any side of 49.
so total 14 spaces are required in 7 moves which can be achieved by max 7 move on any side
so total spaces = 28
probability = 28%
Re: board game prob.   [#permalink] 11 Dec 2011, 22:06
Similar topics Replies Last post
Similar
Topics:
11 For each players turn in a certain board game, a card is 3 02 Nov 2012, 13:43
11 For each player's turn in a certain board game, a card is 7 06 May 2012, 09:29
A certain board game has a row of squares numbered 1 to 100. 12 29 Feb 2012, 10:58
prob. 2 05 Jul 2011, 21:54
5 A certain board game consists of a circular path of 100 spaces colored 9 07 Mar 2011, 00:02
Display posts from previous: Sort by