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How many 3 digit even numbers can be formed from 1, 2, 4, and 5 with no repetition?
I have a question. How many 3 digit even numbers can be formed from 1, 2, 4, and 5 with no repetition?
Let me see... The first digit can only be 2 or 4. Then the second and third slot has 3 and 2 choices, respectively. So there are 2 x 3 x 2 = 12 even numbers that can be formed.