In how many different ways can 3 employees (Bill, Pete, Alex) divide u

In how many different ways can 3 employees (Bill, Pete, Alex) divide up 12 tasks so that Bill covers 3, Pete covers 5, and Alex covers 4.

In how many different ways can 3 employees (Bill, Pete, Alex) divide u

In how many different ways can 3 employees (Bill, Pete, Alex) divide up 12 tasks so that Bill covers 3, Pete covers 5, and Alex covers 4.