Question 1120045
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(a)  You correctly found 19600 for (a).  Congratulations !



(b)  To answer question (b), simply read the condition and the question <U>ATTENTIVELY</U>.



(c)  You just found that 3 states can be selected by 19600 ways.


     Next, for each of the selected 3 states we can choose one senator in 2 ways from the first of the 3 states;

                                                                       in 2 independent ways from the second of the 3 states;

                                                                   and in 2 independent ways from the third of the 3 states.


     Hence, the answer to question (c)  is  2*2*2*19600 = 156800 ways.
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