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HELP!! NUMBER PROPERTIES QUESTION

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ayushkhatri
 Post subject: HELP!! NUMBER PROPERTIES QUESTION
 Post Posted: Sun Aug 15, 2010 6:47 pm 
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Course Students


Posts: 3
Can someone please explain the answer for this ? I dont understand the MGMAT CAT explanation.

Thanks.

If x, y, and z are integers greater than 1, and (327)(510)(z) = (58)(914)(xy), then what is the value of x?

(1) y is prime

(2) x is prime
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mschwrtz
 Post subject: Re: HELP!! NUMBER PROPERTIES QUESTION
 Post Posted: Fri Sep 03, 2010 2:43 am 
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ManhattanGMAT Staff


Posts: 506
As with so many questions, the trick here is to represent the values as products of primes. Well, primes and variables, in this case.

(327)(510)(z) = (58)(914)(xy)

becomes

2*3*3*5*17*109*z=2*2*29*457*x*y

You can divide the two sides by much, but

3*3*5*17*109*z=2*29*457*x*y...

Hmm, you must have misread the question. There's no way that the two statements could both be true. And there's no way that you would be expected to recognize 457 as a prime number.

Get back to us with the correct question.
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yousuf_azim
 Post subject: Re: HELP!! NUMBER PROPERTIES QUESTION
 Post Posted: Thu Sep 29, 2011 7:28 am 
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Students


Posts: 45
Dear Concern,

What is the ANS?

BR
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jnelson0612
 Post subject: Re: HELP!! NUMBER PROPERTIES QUESTION
 Post Posted: Sun Nov 13, 2011 11:26 pm 
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ManhattanGMAT Staff


Posts: 1634
yousuf_azim wrote:
Dear Concern,

What is the ANS?

BR


Please see this thread, which contains the correct question and answer: if-x-y-and-z-are-integers-greater-than-1-and-t9863.html The question above is not an accurate representation of the actual question.

_________________
Jamie Nelson
ManhattanGMAT Instructor
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geeknick
 Post subject: Re: HELP!! NUMBER PROPERTIES QUESTION
 Post Posted: Thu Nov 17, 2011 4:16 am 
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Forum Guests


Posts: 6
hey i have some problems while solving this by using number properties but i couldn't find the correct answer so please help me out to get rid from this silly problem.

Problem:
A number when divided by a divisor leaves a remainder of 24. When twice the original number is divided by the same divisor, the remainder is 11. What is the value of the divisor?

Thanks in advance,
NICK
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tim
 Post subject: Re: HELP!! NUMBER PROPERTIES QUESTION
 Post Posted: Fri Nov 25, 2011 1:38 pm 
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ManhattanGMAT Staff


Posts: 1779
Location: Southwest Airlines, seat 21C
Actually, geeknick, we’re not going to answer that question in this thread. You need to start a new thread for a new problem, and be sure to cite the source of the problem, AND tell us what you tried and why the solution you encountered didn’t help..

_________________
Tim Sanders
Manhattan GMAT Instructor
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