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A, B and C line up randomly to buy tickets. Find the probability that A is beside C in the queue

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Answer:

Sample Space = {(ABC), (ACB), (BAC), (BCA), (CAB), (CBA)}

= 6

Instances when A is besides C {(ACB),( BAC),( BCA), ( CAB)}

=4

P( A is besides C)= 4/6

= 2/3

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