The names of 9 fifth-graders, including the top math and the top spelling studen
ID: 2935044 • Letter: T
Question
The names of 9 fifth-graders, including the top math and the top spelling student in the fifth-grade class, are placed in a hat and randomly selected to sit on the stage with the governor for his visit to the school.
Four students are randomly selected to join the governor.
a. In how many ways can four students be selected for first chair, second chair, third chair, and fourth chair to join the governor for this occasion?
The students can be selected for first chair, second chair, third chair, and fourth chair to join the governor in ways.
Explanation / Answer
Number of ways the students can be selected for first chair, second chair, third chair, and fourth chair to join the governor
= 9P4
= 9! / (9 - 4)!
= 9! / 5!
= 3024