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

 It is currently 28 Aug 2015, 16:53

### 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

# Any decimal that has only a finite number of nonzero digits

Author Message
SVP
Joined: 21 Jul 2006
Posts: 1551
Followers: 8

Kudos [?]: 387 [0], given: 1

Any decimal that has only a finite number of nonzero digits [#permalink]  20 Aug 2009, 04:43
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

1)Any decimal that has only a finite number of nonzero digits is a terminating decimal. For example, 36, 0.72, and 3.005 are terminating decimals. If a, b, c, d and e are integers and p= 2^a3^b and q = 2^c3^d5^e , is p/q a terminating decimal?

1) a > c
2) b> d

thanks
Manager
Joined: 14 Aug 2009
Posts: 123
Followers: 2

Kudos [?]: 95 [1] , given: 13

Re: Is p/p terminating decimal? [#permalink]  20 Aug 2009, 05:52
1
KUDOS
p/p=1, man :D

the question is:
$$p= 2^a*3^b$$ and $$q = 2^c*3^d*5^e$$ , is p/q a terminating decimal?

$$p/q=2^(a-c)*3^(b-d)*5^(-c)$$
therefore, as long as (b-d)>0, p/q is terminating

_________________

Kudos me if my reply helps!

Director
Joined: 01 Apr 2008
Posts: 903
Schools: IIM Lucknow (IPMX) - Class of 2014
Followers: 18

Kudos [?]: 360 [0], given: 18

Re: Is p/q terminating decimal? [#permalink]  20 Aug 2009, 09:08
Yup B.
Stmt 2 is sufficient to ensure that all 3's in the denominator are cancelled out and hence we will always have a terminating decimal
Re: Is p/q terminating decimal?   [#permalink] 20 Aug 2009, 09:08
Display posts from previous: Sort by