2 years ago

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:

12

Step-by-step explanation:

Using Permutation Formula :

⁴P₂
4! / 2!
4 x 3 x 2! / 2!
4 x 3
12

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