Math, asked by kunalsingh90602, 8 months ago

How many numbers of 4 digits can be formed our of the digits 1, 2, 3 ...9 if repetition of digits (i) not allowed (ii) allowed

Answers

Answered by jeevanmunegowd7

2

Answer:

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Step-by-step explanation:

1. 4+3+2+1=24

2.4/4=256

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