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How many four digit natural numbers not exceeding 4321 can be formed with the digits 1,2,3,4 if the digits can repeat

How many four digit natural numbers not exceeding 4321 can be formed with the digits 1,2,3,4 if the digits can repeat

Grade:11

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago
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