Question

Question #d3e91

Answer 1

`6`

Explanation:

If you want an even number, the number would have to end in an even number. The only even number we have in the above list is `2`.

We are left with `3` numbers. When we pick the first number, there will be `3` numbers left. When we pick the second number, there will be `2` numbers left. When we pick the third number, there will only be `1` number left.

Therefore, the number of numbers that can be formed is given by `3! * 1 = 3 * 2 * 1 * 1 = 6`, where `n! = n(n - 1)(n - 2)(...)(1)`.

Hopefully this helps!