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How many four digit numbers can be forme...

How many four digit numbers can be formed using digits 1,2,3,4,5 such that atleast one of the number is repeated?

A

`4^(4)-5 !`

B

`4^(5)-4 !`

C

`5^(4)-4 !`

D

`5^(4)-5 !`

Text Solution

Verified by Experts

The correct Answer is:
D
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