From a Group of 8 People, Including Sachin and Rahul, 3 people are to be selected at random to work on a certain project. What is the probability that 3 people selected will include Sachin but not Rahul
Choose the correct choice
A) 5/56
B) 9/56
C) 15/56
D) 21/56
E) 25/56
Number of ways of selecting 3 people out of 8 people = 8C3   In the three members Sachin will always be there in the team. At this step we have vacancy for 2 more members and 7 members are available. Lina cannot be there in the team. So 2 members have to be selected and the number of available members = 7 - Rahul = 6   Number of ways to form a 3 member team that includes Sachin and excludes Rahul = 615/562   Probability = 615/562/815/563 = 15/56   Answer: 15/56
<result>C</result>
From a Group of 8 People, Including Sachin and Rahul, 3 people are to be selected at random to work on a certain project. What is the probability that 3 people selected will include Sachin but not Rahul