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If n and m are positive integers, is n/m equal to a [#permalink]
 02 Oct 2009, 01:46
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0% (00:00) correct
100% (02:03) wrong based on 0 sessions
If n and m are positive integers, is n/m equal to a terminating decimal? (Terminating decimal is a decimal that has only a finite number of non-zero digits).
1/ n is a factor of 60
2/ m is a factor of 250
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Re: Terminating decimal [#permalink]
02 Oct 2009, 02:59
B
factors of m can only be 1,2 or 5. in any case, we get a terminating decimal.
Last edited by Economist on 02 Oct 2009, 23:19, edited 1 time in total.
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Re: Terminating decimal [#permalink]
02 Oct 2009, 03:18
IMO its E.
n=1/60,1/120 ....
lets break these into prime factors.
60=2*2*3*5
m=1/125,1/250 ....
125=5*5*5
n/m=125/60..now number doesnt have a 3,so let me how it terminate.
My Pick E.
Please get the OA...
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Re: Terminating decimal [#permalink]
02 Oct 2009, 03:33
I guess the "/" is just a delimiter to specify the statement number  It is not 1/n or 2/m.
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Re: Terminating decimal [#permalink]
02 Oct 2009, 03:38
ohh ok...that made a good DS too though 
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Re: Terminating decimal [#permalink]
02 Oct 2009, 03:55
abhivarma03 wrote: IMO its E.
n=1/60,1/120 ....
lets break these into prime factors.
60=2*2*3*5
m=1/125,1/250 ....
125=5*5*5
n/m=125/60..now number doesnt have a 3,so let me how it terminate.
My Pick E.
Please get the OA... Yup you are right But then the answer would be B. Because, even if we consider 1/n...n can ONLY be 1..because a fraction cannot be a factor of an integer. But this is not sufficient. Similarly m can ONLY be 1. That is sufficient. 
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Re: Terminating decimal [#permalink]
02 Oct 2009, 04:10
Economist wrote: I guess the "/" is just a delimiter to specify the statement number It is not 1/n or 2/m. Sorry dudes for this confusion. The answer is C. Thanks
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Re: Terminating decimal [#permalink]
02 Oct 2009, 15:26
I have a small doubt...
As m can only have factors 1,2 and 5.. should stmt B in itself not be sufficient to answer the question?
P.S. I am assuming here that any fraction divided by 2 or 5 will lead to a terminating decimal..
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Re: Terminating decimal [#permalink]
02 Oct 2009, 15:31
rvthryet wrote: I have a small doubt...
As m can only have factors 1,2 and 5.. should stmt B in itself not be sufficient to answer the question?
P.S. I am assuming here that any fraction divided by 2 or 5 will lead to a terminating decimal.. I agree. Answer should be B and not C.
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Re: Terminating decimal [#permalink]
02 Oct 2009, 16:36
IMO answer should be B....
1. n is a factor of 60. no information about B... insuff
2. m is a factor of 250....prime factors of 250 are 5 and 2...divide any number by 5 & 2 will result into terminating decimal
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Re: Terminating decimal [#permalink]
02 Oct 2009, 23:18
Correct guys I meant B and not C. andrewg can you please re-check OA?
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Re: Terminating decimal
[#permalink]
02 Oct 2009, 23:18
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