How many ways can Jason sit with his five friends in a row of six seats with an aisle on either side of the row, if Jason insists on sitting next to one of the aisles?
Choose one.
A) 120  B) 240  C) 360  D) 540  E) 720
Jason can select his seat in 2 Ways (two aisles)   His 1st of 4 friends have 5 seats to select =&gt;   His 2nd of remaining 3 friends will have 4 seat to chose from...and so on   Total ways =&gt; 2*5*4*3*2*1= 
<gadget id="calculator">2*5*4*3*2*1</gadget>
<output>240</output>
240   ANS:240
<result>B</result>
How many ways can Jason sit with his five friends in a row of six seats with an aisle on either side of the row, if Jason insists on sitting next to one of the aisles?