SOLUTION: There are 15 students in a lab. Count the total number of ways that 4 can receive A's and 7 receive B's.

Algebra ->  Permutations -> SOLUTION: There are 15 students in a lab. Count the total number of ways that 4 can receive A's and 7 receive B's.      Log On


   



Question 879206: There are 15 students in a lab. Count the total number of ways that 4 can receive A's and 7 receive B's.
Answer by ewatrrr(24785) About Me  (Show Source):