Question

How many 3 digit even numbers can be formed using the digits 3, 5, 7, 8, 9, if the digits are not repeated?

Answer 1

$3$ Digit even number

No repetition

$3,5,7,8,9$

The last place should be filled by an even number that is $8$ only

Rest $2$ places in

${\Rightarrow }^4{P}_2$
$\Rightarrow 4\times 3$

$12$ ways

Hence the correct answer is $12$ codes possible