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Ask iit jee aieee pet cbse icse state board experts Expert Question: Probability involving divisibility of 2 no.s
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[Post New]10 Feb 2008 20:54:31 IST
    Subject: Probability involving divisibility of 2 no.s
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abhi2cul (0)

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Probability such that (P4-Q4] is divisible by 4,where P n Q are two randomly selected no.s from set (1,25)
    
[Post New]11 Feb 2008 09:32:12 IST
    Subject: Re:Probability involving divisibility of 2 no.s
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hsbhatt (3649)

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For P4-Q4 to be divisible by 4, both P and Q should be even or P and Q should be odd. This gives 12*12 + 13*13 = 169+144 = 313 favourable pairs out of 625 possible pairs. Hence prob = 313/625.
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[Post New]11 Feb 2008 13:54:49 IST
    Subject: Re:Probability involving divisibility of 2 no.s
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puneet (3521)

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hii

perfectly correct ... it is just this ..

cheers
Puneet Agrawal
IIT Delhi
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[Post New]11 Feb 2008 14:34:58 IST
    Subject: Probability involving divisibility of 2 no.s
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rockey (168)

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bhatt ur brilliant
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[Post New]11 Feb 2008 14:41:53 IST
    Subject: Re:Probability involving divisibility of 2 no.s
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hsbhatt (3649)

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hey thanx for the compliment. (blush)
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[Post New]11 Feb 2008 14:58:43 IST
    Subject: Probability involving divisibility of 2 no.s
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rockey (168)

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bhatt did u try that olympiad prob., i didnt get it please try
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