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LivForMusic
Alice, Bob, Chris, Don, Ed, Frank, Gary, Hank, Irene, Jack, Ken, Lane, Mary, Nancy, Olivia, Pete, Quinn, Ron, Steve, and Tony are candidates in an election to be corporate officers (President, Vice President, and Treasurer.) How many outcomes can the election have with either Alice or Bob as Vice President?
I think it is 1140 http://www.mathsisfun.com/combinatorics/combinations-permutations-calculator.html
@TashaMeni7 did u use combinations or permutations? and what was ur formula? ex. 20P2
@RadEn is that using combination or permutation?
i have used filling slot method : |dw:1355778021103:dw|
@RadEn sorry my laptop overheated, and no not really. is there any way to do this using permutations?
would it be 19P2 + 18P2 which would be 648?
it similar by permutation, but i think we have to divide it to 2 case, case I : Alice be a president, so the rest is 19P2 case II : Bob be a president, so the rest is 19P2 so, total ways = 2 * 19P2
i meant be a vice president :) for alice or bob
ok yeah that makes sense since it doesnt say one cant be another officer while the other is vice president if that makes sense
actually, i will use filling slot method for this case because easier :)
but by permutation work too