Asked by Romero
A school committee votes to elect a member to be president and a member to be secretary. There are 15 members on the committee.
How many different ways can they choose a president and secretary?
210
91
105
182
Thought it was 105 but turned out wrong
help?
How many different ways can they choose a president and secretary?
210
91
105
182
Thought it was 105 but turned out wrong
help?
Answers
Answered by
Reiny
Since the positions are specified as president and secretary, this is a permutation.
You found it as a combination.
Number of ways = 15*14 = 210
You found it as a combination.
Number of ways = 15*14 = 210
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