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Algebra
nitish bindal
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Joined: 3 Oct 2011
Post: 106
12 Jun 2012 20:42:01 IST
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permutations and combinations
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Algebra

 no. of ways in which 2 no. x and y are selcted from (1,2,3.....50) such that /x-y/ < or equal to 2 is  (where / represents modulus)..................


Comments (3)
rithvik
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Joined: 14 Jun 2012
Posts: 3
14 Jun 2012 20:29:03 IST
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is it 48!
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nitish bindal
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Joined: 3 Oct 2011
Posts: 106
14 Jun 2012 21:20:07 IST
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 no its not!!!!
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aniket mukherjee hahaha
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Joined: 7 Jun 2012
Posts: 39
15 Jun 2012 00:09:57 IST
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2351 is the answer
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