a,b,c,d,e,f,g,h sitting in a row what is the probability that a,b,c sitting together?
Choose the correct choice from the following
A) 3 / 14  B) 5 / 28  C) 3 / 28  D) 1 / 7  E) 9 / 28

Rationale: total number of arrangement is = 8 ! = 40320 favorable event i . e ) a , b and c can be arranged in 3 ! and the remaining can be arranged in 6 ! since ab can be in any of the four positions . so 3 ! * 6 ! / 8 ! = 3 / 28 answer : c
Answer: C