The number of natural numbers less than 1000 , in which no two digits are repeated, is :

The number of natural numbers less than 1000 , in which no two digits are repeated, is :
  1. 738
  2. 792
  3. 837
  4. 720

Solution

The number of natural numbers less than 1000 , in which no two digits are repeated $=738$

Asked in: AP EAMCET 2006

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