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[Post New]12 May 2007 09:58:56 IST
    Subject: probablity of the reverse psychology theory
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Mr.IITIAN007 (3000)

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Olaaa!! Perrrfect answer. 562  [657 rates]
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Two numbers X and Y are chosen at random( without replacement ) from the set
{1,2,3,4,..........................,5N).What is the probability that
(i) X3+Y3 is divisible by 5
(ii) X2+Y2 is divisible by 5
Ken
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