Susan, John, Tim,and Kim need to be seated in 4 identical chairs in straight line so that Susan is seated always left to Tim. How many such arrangements are possible ?
Choose the correct choice from the following options:
A) A)12
B) B)120
C) C)80
D) D)240
E) E)60
Total number of arrangements = 4! = 24   In exactly half, Susan will be to the left of Tim, which gives us 12 arrangements   Option (12)
<result>A</result>
Susan, John, Tim,and Kim need to be seated in 4 identical chairs in straight line so that Susan is seated always left to Tim. How many such arrangements are possible ?