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[Post New]23 Apr 2007 13:52:37 IST
    Subject: Permutations And Combinations
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master_purav (1343)

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Olaaa!! Perrrfect answer. 217  [346 rates]
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Firstly, the maximum number is 40 which means that we have to include 40 and other two from 1 - 39.

This can be done in 39C2 ways.

same funda applies for the next part.....

So the ans required is 2*39C2
=39*38
=1482
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