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[Post New]9 Apr 2008 20:40:49 IST
    Subject: probability
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ridhima (209)

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Olaaa!! Perrrfect answer. 37  [49 rates]
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if 2 natural numbers b/w  1  and  30 are chosen
find the probability that x^2 - y^2 is divisible by 3
just give a hint
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