A 4-person grievance committee is to selected out of 2 department, A and B, with 18 and 23 people, respectively. In how many ways can the following committees be selected?
A) 3 from A and 1 from B.
B) 2 from A and 2 from B.
C) All from A.
D) 4 people regardless of department.
E) At least 3 from department A.
Solution:-
A) 18768
B) 38709
C) 3060
D) 101270
E) 21828