Question 935765

Consider the 5-digit number as blanks:  _ _ _ _ _

The last digit must be even. Since we have three even numbers ({{{2}}},{{{4}}},{{{8}}}). The last digit can be filled in {{{3}}} ways. Since repetition is not allowed, we can fill out the rest blanks in ways,{{{3}}} ways,{{{2}}} ways, and {{{1}}} way.

{{{1* 2 * 3* 4 *3 = 72}}} ways ; so, {{{72}}} 5-digit even numbers can be formed