+1348 What is the number of different ways to choose a chairman, two deputies, and two assistants for the class committee out of 7 students up for elections.
+865 How are you getting all these questions?????
Well, there are 7C1 = 7 ways for the chairmen.
6C2 = 15 ways to choose two deputies (2 deputies out of 6 remaining people).
4C2 = 6 ways to choose two assistants (2 assistants out of 4 remaining people)
Multiplying them: 15*6*7 = 630 different ways.
+865 How are you getting all these questions?????
Well, there are 7C1 = 7 ways for the chairmen.
6C2 = 15 ways to choose two deputies (2 deputies out of 6 remaining people).
4C2 = 6 ways to choose two assistants (2 assistants out of 4 remaining people)
Multiplying them: 15*6*7 = 630 different ways.
