Friday, October 15, 2010

Long Run Problem !

Well This One is After a Long Time From me and I can Bet that It is One of the best.
It took all my Sleep From me ! So Do Try It.

If There is A Sequence Such that an+1  = [3an]/2. Well you Have to prove that in This sequence there can be infinite evens as well infinite odds. 

Well Try It. It is a real Good one !

4 comments:

  1. dude i have already told ya the solution.. naa???
    i m not gnna work hard again.. type it over all again.. so u better do it...

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  2. Yea.. You Told me but abhi toh kissi ne try hi nahi ki.. and I m not gonna write the largest of all solution over again.. :D

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  3. heyy man i dont think that solution was large.. it was quite small and easy one.. i mean no higher concepts were involved... just basic computation...

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  4. If you proceed by contradiction,
    if you assume a finite number of odds,
    you will end up with a sequence having all numbers as 0(mod. 12), which is not possible.
    Similarly, if you assume a finite number of evens,
    you will end up with a sequence having all numbers as 1(mod. 12), which also is impossible.
    Hence, you get the result.

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