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Multiples

distinct 4-di...

Question

_____ distinct 4-digit numbers can be formed using digits 4,3,2,1 once without repetition.

A

24

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B

20

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C

40

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D

4

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Solution

The correct option is A
24

24 distinct 4-digit numbers can be formed using digits 4,3,2,1 once without repetition.

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