Question 924843
5, 6, 7, 8 and 9 
How many two-digit even numberscan be formed   <u>without any digit repeated</u>
...
4 choices for the first Number AND then 2(6 0r 8)  choices for the second Number
{{{4*2)}}} = 8  two-digit even numbers can be formed.
56,76,86,96
58,68,78,98