A company assign a unique 3 digit telephone extension to : Quant Question Archive [LOCKED]
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 22 Jan 2017, 03:14

### 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

# A company assign a unique 3 digit telephone extension to

Author Message
Manager
Joined: 25 Feb 2008
Posts: 53
Followers: 0

Kudos [?]: 14 [0], given: 0

A company assign a unique 3 digit telephone extension to [#permalink]

### Show Tags

11 Mar 2008, 07:07
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

A company assign a unique 3 digit telephone extension to each of its employees. What is the maximum number of employees of the company's telephone sustem will accomodate?

1) the first digit of each extension is restricted to the 2 through 8, there are no restriction on the second and third digit.
2) the digit 9 is used to access an outside telephone line.

thanks
Director
Joined: 01 Jan 2008
Posts: 629
Followers: 4

Kudos [?]: 175 [0], given: 1

Re: A unique three digit [#permalink]

### Show Tags

11 Mar 2008, 07:23
Capthan wrote:
A company assign a unique 3 digit telephone extension to each of its employees. What is the maximum number of employees of the company's telephone sustem will accomodate?

1) the first digit of each extension is restricted to the 2 through 8, there are no restriction on the second and third digit.
2) the digit 9 is used to access an outside telephone line.

thanks

I don't see relevance of condition 2 since the first digit can not be equal to 9 anyway.
first digit: 7 options, second digit 10 options, third digit 10 options -> 700 employees
VP
Joined: 22 Oct 2006
Posts: 1443
Schools: Chicago Booth '11
Followers: 9

Kudos [?]: 185 [0], given: 12

Re: A unique three digit [#permalink]

### Show Tags

11 Mar 2008, 08:32
A

definitely not a good GMAT question
SVP
Joined: 28 Dec 2005
Posts: 1575
Followers: 3

Kudos [?]: 147 [0], given: 2

Re: A unique three digit [#permalink]

### Show Tags

11 Mar 2008, 09:55
didnt like this question, but get A.

7X10X10 = 700

B doesnt tell us much other than that we cant use 9
Re: A unique three digit   [#permalink] 11 Mar 2008, 09:55
Display posts from previous: Sort by