DS

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by gmattester » Thu Aug 28, 2008 12:33 pm
In the fraction x/y, where x and y are positive integers, what is the value of y?
1. The least common denominator of x/y and 1/3 is 6
2. x=1

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by saeed » Thu Aug 28, 2008 9:36 pm
I guess the answer is A.

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by jeffxujian » Fri Aug 29, 2008 1:19 am
IMO E

1. common denominator x/Y and 1/3 is 6 y could be 2, 6, so insufficient

2. x=1 tells nothing about Y , also insufficient

1+2 we have 1/Y and 1/3's common denominator is 6, 1/y could 1/2 or 1/6, so still insufficient