10 men and 10 women are there.They dance with each other.Is there possibility that two men are dance with same girl and vice versa?
a)22 b)20 c)10 d)none of these

• d)none of these
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• Answer is d)non of these.
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• there can be 2 men dancing with a women in the same way 2 women can dance with a men so that there wont be any one left out.
  
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