(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

There are a total of 30 members of Parliament in a new country called JanesWorld. Among these deputies, there are 10 from the “Conservative Janes” , 8 from the “Progressive Janes” and 12 independents . How many ways can Queen Jane form a parliamentary committee of 11 parliamentarians, if:

(a) the committee must contain at least one independent ; (b) the committee must contain at most two independents ; (c) the committee has exactly six Conservative Janes, but the Conservative X and the Progressive Y cannot be on the committee at the same time.

2. Relevant equations

Combinations and Permutations

3. The attempt at a solution

a) Total number of possible committees= C(30,11)

# of committees without independents= C(18,11)

Therefore, numer of committees with atleast one independent= C(30,11)- C(18,11)

b) Total number of possible commitees= C( 30,11)

Total # of committes without independents= C(18,11)

Total # of comm. with 1 independent= C( 12,1) x C( 18,10) ????

Total number of committees with 2 independents= C( 12,2) x C( 18,9) ????

c) Choosing 6 out of 10 conservatives= C( 10,6)

Total number of comittees= C(30,11)= C(10,6)+ C(20,5)

Possibility of X being in committee= C( 10,1)

Possiblity of Y being in committee= C( 20,8) x C(8,1) ??????????????

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Combinations Question Please Help Urgently!

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