The number of three-digit numbers with distinct digits that can be formed using the digits 1, 2, 3, 5, 8, and 9 is ____.

Question

The probability that both the first digit and the last digit of the three-digit number are even numbers is ____ .

Answer 1

₆C₃ numbers can be formed.

Of that number 2*5*1 will have even numbers in firat and last position.

You compute the probability.

BTW: the C notation is the binomial coefficient.