Possible arrangements for the word REVIEW if one E can't be next to the other.  Choose the correct choice from the following choices:
A) 100  B) 200  C) 300  D) 400  E) 500
1) All arrangements: 6!/2 = 360 (1/2 in order to exclude double counting as [E1, E2] is the same as [E2,E1])   2) All arrangements with two E together: 5!/2 = 60   3) All arrangements in which one E can't be next to the other:  360 - 60= 
<gadget id="calculator"> 360 - 60</gadget>
<output>300</output>
300.   ANSWER:300
<result>C</result>
Possible arrangements for the word REVIEW if one E can't be next to the other.