It is currently 17 Nov 2017, 22:07

### 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

# Does the decimal equivalent of P/Q, where P and Q are

Author Message
Manager
Joined: 23 Mar 2008
Posts: 216

Kudos [?]: 202 [0], given: 0

Does the decimal equivalent of P/Q, where P and Q are [#permalink]

### Show Tags

07 Jun 2008, 11:47
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:01) 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.

Does the decimal equivalent of P/Q, where P and Q are positive integers, contain only a finite number of nonzero digits?

1) P>Q
2) Q=8

Kudos [?]: 202 [0], given: 0

Senior Manager
Joined: 12 Apr 2008
Posts: 499

Kudos [?]: 250 [0], given: 4

Location: Eastern Europe
Schools: Oxford

### Show Tags

07 Jun 2008, 13:33
I think it’s B.
(1) insuff. Example: 3/2=1.5 finite. 5/3 = 1.66666… infinite.
(2) suff. First, note that 1/8 = 0.125. Then, for any P, P/8 = P*(1/8) = P*0.125 – finite.

Kudos [?]: 250 [0], given: 4

Director
Joined: 14 Oct 2007
Posts: 751

Kudos [?]: 234 [0], given: 8

Location: Oxford
Schools: Oxford'10

### Show Tags

07 Jun 2008, 13:42
puma wrote:
Does the decimal equivalent of P/Q, where P and Q are positive integers, contain only a finite number of nonzero digits?

1) P>Q
2) Q=8

If the fraction is reduced as much as possible, the quotient should contain only factors of 2 and/or 5 for it to be a finite terminating decimal

1) clearly not sufficient 3/2 = 1.5 , 4/3 = 1.333333333333 as examples

2) sufficient since Q = 2^3 therefore we are guaranteed to have a factor of two in the quotient after reducing the fraction.

B

Kudos [?]: 234 [0], given: 8

Manager
Joined: 21 Mar 2008
Posts: 239

Kudos [?]: 38 [0], given: 0

### Show Tags

07 Jun 2008, 14:08
Yup B it is...multiples of 2 in the deno will give non terminating decimals..

Kudos [?]: 38 [0], given: 0

SVP
Joined: 28 Dec 2005
Posts: 1543

Kudos [?]: 185 [0], given: 2

### Show Tags

08 Jun 2008, 06:45
B for me as well. If a denominator has only 5s or only 2s as its prime factors, then the decimal will be non-terminating

Kudos [?]: 185 [0], given: 2

Re: DS: decimal equivalent   [#permalink] 08 Jun 2008, 06:45
Display posts from previous: Sort by