Problem 768

A 4-person grievance committee is to be selected out of 2 departments, A and B, with 18 and 23 people, respectively. In how many ways can the following committees to 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

 

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