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How many four digit numbers can be formed from the digits 123456 if no digit may be repeated in a number?
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3 votes
How many four digit numbers can be formed from the digits 123456 if no digit may be repeated in a number?

User The Rationalist
by
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1 Answer

4 votes
First digit: 6 choices
second digit: 5 choices
third digit: 4 choices
fourth digit: 3 choices

Total number of arrangements
= 6*5*4*3
=360
User Anton Hughes
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7.6k points
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