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# X , Y , and Z are positive integers. Is X% of Y bigger than

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Current Student
Joined: 11 May 2008
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X , Y , and Z are positive integers. Is X% of Y bigger than [#permalink]  02 Sep 2008, 22:14
$$X$$ , $$Y$$ , and $$Z$$ are positive integers. Is $$X%$$ of $$Y$$ bigger than $$Y%$$ of $$Z$$ ?

1. $$X = Z$$
2. $$Z - Y = Y - X$$

show the working pls..... in detail
Director
Joined: 14 Aug 2007
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Re: % problem [#permalink]  02 Sep 2008, 23:37
arjtryarjtry wrote:
$$X$$ , $$Y$$ , and $$Z$$ are positive integers. Is $$X%$$ of $$Y$$ bigger than $$Y%$$ of $$Z$$ ?

1. $$X = Z$$
2. $$Z - Y = Y - X$$

show the working pls..... in detail

is (x*y)/100 > (y*z)/100 i.e is x>z

1) gives us the answer NO, thus sufficient

2) X = 2*Y - Z

Considering x,y,z are +ve numbers, X can be greater than Z or less than z

Thus not suff.

A for me
Current Student
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Re: % problem [#permalink]  03 Sep 2008, 00:52
yeah... good ans..A is correct
VP
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Re: % problem [#permalink]  03 Sep 2008, 08:53
Re: % problem   [#permalink] 03 Sep 2008, 08:53
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