In how many ways can five girls stand in line if Maggie and Lisa cannot stand next to each other?	Select the correct option
A) 112 B) 96 C) 84 D) 72 E) 60
1. the total number of permutations: 5! = 120   2. Let's consider Maggie and Lisa as one object, then the total number of permutations with Maggie and Lisa together: 4! = 24.   3. Take into account that [Maggie, Lisa] and [Lisa, Maggie] are different.   4. Maggie and Lisa cannot stand next to each other in:   120 - 2*24= 
<gadget id="calculator">  120 - 2*24</gadget>
<output>72</output>
72 ways.   ANS:72
<result>D</result>
In how many ways can five girls stand in line if Maggie and Lisa cannot stand next to each other?