Question 867220
Find out in how many ways the operation can be performed? (Permutation & Combination)? 
i) In how many ways can a committee of 5 or more be formed from 12 persons?
Ans: 12C5 + 12C6 + 12C7 + ... + 12C12
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ii) In how many ways can a committee of 5 be formed from 12 persons if only two of a group of 3 persons must always be included?
Ans: 3C2*9C3 = 3*84 = 252
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Cheers,
Stan H.
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