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Source: — Data Sufficiency |
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by cramya » Thu Dec 11, 2008 6:12 am
I ) y can be 2 or 6 insuff

II) x=1 does not give us any info about y(still 2 and 6 possible values for y) INSUFF


I and II Combined still 2values for y possible

E)
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by ronniecoleman » Fri Dec 12, 2008 12:32 am
IMO E
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by vittalgmat » Sun Dec 14, 2008 3:21 am
E for me as well.

The trap (sort of) is in stmt 1.
In a hurry, one can conclude the lcm(x, 3) = 6. So x is 6.
Watch out for this and avoid.
The LCM (x,3) = 6 => x can be 6 itself OR a number coprime to 3 such that their product is 6 => 2.

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by logitech » Sun Dec 14, 2008 10:02 am
vittalgmat wrote:E for me as well.

The trap (sort of) is in stmt 1.
In a hurry, one can conclude the lcm(x, 3) = 6. So x is 6.
Watch out for this and avoid.
The LCM (x,3) = 6 => x can be 6 itself OR a number coprime to 3 such that their product is 6 => 2.

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by destination750plus » Fri Dec 19, 2008 5:14 am
THE least C Denom
can be 6 if and only if y=2 or y=6, this has got no relationship with the value of the numerator X.
Hence the answer is E as we have no idea whether y is 2 or 6 (the value of X/y will still be not known even if we are given the value of X}
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