Question

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?

Answer 1

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