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find the number of distinct positive integers that can be formed using 0,1,2,3 where each integer is used at the most once.

6 years ago


Answers : (1)


1 digit integer=4

2 digit integer=4p2-3p1=9

3 digit integer=4p3-3p2=18

4 digit integer=4p4-3p3=18

adding these we get 49 which is the answer

6 years ago

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