Question

How many three digit even numbers can be formed using digits 0,1,2,.....9? (No repetition of digits)

Answer 1

case-1 last digit is 0
$9\times 8\frac{1}{0}=72$
case-2 last digit is not 0
Mevis 2, 4, 6, 8
$8\times 8\times 4=256$
total 72+256
=328