How many different two digit numbers can you make using the numbers 3,7,9, and 2 if no digit is repeated within a number?

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asked Nov 8, 2016 220k views

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Doug F · Answer 1 · 2016-11-12T20:20:24+0000

The first digit can be any one of the four. For each of those . . .
The second digit can be any one of the remaining 3 .

The total number of possible arrangements is (4 x 3) = 12 .

How many different two digit numbers can you make using the numbers 3,7,9, and 2 if no digit is repeated within a number?

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