Question

A student club has 20 members. How many ways can the club choose a President, Secretary, and Treasurer?
Anwsers:
6,840
8,000
2,280

Answer 1

6840

Answer 2

how many can be president..? 20
How many can be secretary 19
How many can be treasurer 18

mutiply it out to get the solution

Answer 3

=(20)-slots for president
19-slots for secretary since one is elected as a Pres
18- slots for treasurer since two members have the position already
=20*19*18
=6840 ways