Leadership positions for a college social club are up for election. Three people are needed to fill the positions of president, vice president, and...

Leadership positions for a college social club are up for election. Three people are needed to fill the positions of president, vice president, and secretary. Only six members are willing to serve in these positions. Each candidate is eligible for each position, and a candidate can only hold one leadership position. How many different ways can the three positions be filled using the six possible candidates?