SOLUTION: in how many ways can a batch of 5 teachers be selected out of 10 teachers so that the eldest is included and the youngest is excluded?

Algebra ->  Permutations -> SOLUTION: in how many ways can a batch of 5 teachers be selected out of 10 teachers so that the eldest is included and the youngest is excluded?      Log On


   

Question 975714: in how many ways can a batch of 5 teachers be selected out of 10 teachers so that the eldest is included and the youngest is excluded?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!

in how many ways can a batch of 5 teachers be selected out of 10 teachers
so that the eldest is included and the youngest is excluded?
Since the youngest is excluded, we only have 9 teachers to choose from, and 
since we must include the eldest, we only have to choose 4 from the other 8 to
select besides the eldest.

Answer:  8 Choose 4 = 8C4 = 70 ways.

Edwin