How many different ways can 2 students be seated in a row of 3 desks, so that there is always at least one empty desk between the students? Choose the correct answer
A) 2	B) 3	C) 4	D) 6	E) 12
1 ways to seat the students:   with two empty seats between   1 empty w/ one student on the left most   1 empty....right most   two students can be interchanged   1x2=2   2
<result>A</result>
How many different ways can 2 students be seated in a row of 3 desks, so that there is always at least one empty desk between the students?