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How many two-digit, positive integers can be formed from the digits 1, 3, 5, and 9, if no digit is repeated? 24 16 12

How many two-digit, positive integers can be formed from the digits 1, 3, 5, and 9, if no digit is repeated? 24 16 12
asked 211k views
25 votes
How many two-digit, positive integers can be formed from the digits 1, 3, 5, and 9, if no digit is repeated?

24
16
12

asked
User Faustino
by
8.6k points

1 Answer

4 votes

Answer:

12

Explanation:

Using Permutation Formula :

  • ⁴P₂
  • 4! / 2!
  • 4 x 3 x 2! / 2!
  • 4 x 3
  • 12
answered
User Destin
by
7.5k points
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