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Interesting DS Q

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Source: — Data Sufficiency |
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by cramya » Mon Nov 17, 2008 3:25 pm
Hope I am not missing something here but I will go wiht A)(right or wrong :-))
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by 4meonly » Mon Nov 17, 2008 11:41 pm
No, OA is not A.

However, Cramya, please, post your reasoning.

[spoiler]OA is C[/spoiler]
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by logitech » Mon Nov 17, 2008 11:54 pm
Do we really have to deal with SUNS of the digits and play the OA game ?

I dont think so.
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Re: Interesting DS Q

by iamcste » Tue Nov 18, 2008 2:12 am
4meonly wrote:Folks, sorry, but OA after few replies 8)
whats the source of qtn...Qtn with typos is surely not a GMAC/GMAT prep qtn..I has to be a local source...
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by meetsubhasis » Tue Nov 18, 2008 12:24 pm
cramya wrote:Hope I am not missing something here but I will go wiht A)(right or wrong :-))
i go with C

expl: the largest sum x can take is 15 numbers of 9. as 999999999999999 = 135. but as per statement 1 sum of digits of x =130, hence we can have different values of x that will satisfy x=130. and so different values of y. hence st1 not sufficient.

st2: y can take any value between 50 - 100. hence no unique value and hence insuff.

both st1 &st2 :

Digits of X =130 : and y bet 50 -100

so x can only be 999999999999949 and y =61
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by 4meonly » Thu Nov 20, 2008 7:09 am
Yes, got it!
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