B is an integer, is 1/b a finite decimal? 1) 2/b is a finite : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 22 Jan 2017, 11:29

### 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

# B is an integer, is 1/b a finite decimal? 1) 2/b is a finite

Author Message
Senior Manager
Joined: 20 Feb 2006
Posts: 373
Followers: 1

Kudos [?]: 26 [0], given: 0

B is an integer, is 1/b a finite decimal? 1) 2/b is a finite [#permalink]

### Show Tags

14 Sep 2006, 14:15
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

B is an integer, is 1/b a finite decimal?
1) 2/b is a finite decimal.
2) 3/b is a finite decimal.
VP
Joined: 02 Jun 2006
Posts: 1267
Followers: 2

Kudos [?]: 80 [0], given: 0

### Show Tags

14 Sep 2006, 19:00
This should be clearly D.

Q asks if 1/b is a finite decimal?

Which means is b not equal to zero?

S1: 2 (1/b) is finite
=> 1/b is finite
=> b is finite.

Sufficient.

S2: Similar.

SVP
Joined: 05 Jul 2006
Posts: 1743
Followers: 6

Kudos [?]: 317 [0], given: 49

### Show Tags

15 Sep 2006, 00:03
Haas can u plz elaborate on the finite .. thing because this is my first time to hear of it

I thought that 1/b and be equall zero is not defined not infinite ... what is wrong with my concept ...pls highlight

I will highly appreciate it
VP
Joined: 02 Jun 2006
Posts: 1267
Followers: 2

Kudos [?]: 80 [0], given: 0

### Show Tags

15 Sep 2006, 04:21
Finiteness as a concept is the opposite of infinite.
When you divide a number by 0 you get infinity.

Therefore for a number to be finite, b has to be not zero.

But I wouldn't worry about this. On the GMAT chances of this questio with infinity are nearly zero.

http://en.wikipedia.org/wiki/Infinite

yezz wrote:
Haas can u plz elaborate on the finite .. thing because this is my first time to hear of it

I thought that 1/b and be equall zero is not defined not infinite ... what is wrong with my concept ...pls highlight

I will highly appreciate it
Senior Manager
Joined: 15 Jul 2006
Posts: 381
Followers: 1

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

### Show Tags

15 Sep 2006, 05:04
I would say A.

I think that a finite decimal refers to a whole number or a fraction as 1/2=.5

as opposed to 1/3=0.3333333333333333............. - not a finite decimal
SVP
Joined: 05 Jul 2006
Posts: 1743
Followers: 6

Kudos [?]: 317 [0], given: 49

### Show Tags

15 Sep 2006, 05:07
Econ girl i believe u mean a terminating decimal with this example
VP
Joined: 02 Jun 2006
Posts: 1267
Followers: 2

Kudos [?]: 80 [0], given: 0

### Show Tags

15 Sep 2006, 07:34
Good one EconGirl... completely missed that point...

Thats actually a very good point... There is a distinction between a finite decimal and a finite number.

http://mathworld.wolfram.com/RegularNumber.html

In this case, if 1/b is a finite decimal then it is not of the form 0.333333... or 0.666666 .... or 0.111111

S1: 2/b is finite decimal...
i.e 2 (1/b) is finite which means 1/b is finite.

S2: 3/b is finite decimal

If 1/b = 1/12 then 3/b is finite decimal .. 1/b is finite decimal
If 1/b = 1/3 then 3/b is finite decimal but 1/b is not finte decimal

EconGirl wrote:
I would say A.

I think that a finite decimal refers to a whole number or a fraction as 1/2=.5

as opposed to 1/3=0.3333333333333333............. - not a finite decimal
SVP
Joined: 05 Jul 2006
Posts: 1743
Followers: 6

Kudos [?]: 317 [0], given: 49

### Show Tags

15 Sep 2006, 23:56
ECONGIRL ROCKS...

Thanks Haas and ECONGIRL..this concept made clear was very important
15 Sep 2006, 23:56
Display posts from previous: Sort by