In how many ways can 4 arts and 5 science students be arranged in a row so that the arts and the science students are placed alternately? Select.
A) 2880  B) 1850  C) 3260  D) 5200  E) 360*120
The four art students can be arranged in those 4 A-slots in 4! = 24 ways.   The five science students can be arranged in those 5 S-slots in 5! =120 ways.   Total arrangements = 24 *120= 
<gadget id="calculator">24 *120</gadget>
<output>2_880</output>
2880   2880nswer=(2880)
<result>A</result>
In how many ways can 4 arts and 5 science students be arranged in a row so that the arts and the science students are placed alternately?