a,b,c,d,e,f,g,h sitting in a row what is the probability that a,b,d are sitting together?	Answers.
A) 1/5	B) 3/28	C) 1/7	D) 1/14	E) 5/28
total number of arrangement is= 8!= 40320   Favorable event i.e a,b and d can be arranged in 3! and the remaining can be arranged in 6! since abd can be in any of the six positions.   so 3!*6!/8! = 3/28   ANSWER:3/28
<result>B</result>
a,b,c,d,e,f,g,h sitting in a row what is the probability that a,b,d are sitting together?