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Nesterboy [21]
2 years ago
10

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

Mathematics
1 answer:
irga5000 [103]2 years ago
8 0

Answer:

<u>12</u>

Step-by-step explanation:

Using Permutation Formula :

  • ⁴P₂
  • 4! / 2!
  • 4 x 3 x 2! / 2!
  • 4 x 3
  • <u>12</u>
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