How many 3 digit even numbers do not use any digit more than once  Choose the correct choice from the following
A) 280	B) 216	C) 2240	D) 246	E) 2520
The Way i solved it is   280 B C ( hundreds, tens, units)   C can be 0 2 4 6 8 ( any of the 5 digits )   280 can be anything except (D or 0) so 8 possibilities   B can be anything execpt ( 280 D C ) so 7 possibilities   total ways are   7 * 8 * 5= 
<gadget id="calculator">  7 * 8 * 5</gadget>
<output>280</output>
280   280ns :280
<result>A</result>
How many 3 digit even numbers do not use any digit more than once