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Permutations Combinations - IB Mathematics HL - IB maths Higher Level

How can we find the number of possible choices for choosing a sub-committee of five persons consisting of the chairperson, secretary and three ordinary members from a committee of 40 people?

Thanks

How can we find the number of possible choices for choosing a sub-committee of five persons consisting of the chairperson, secretary and three ordinary members from a committee of 40 people?

Thanks

- Jack
**Posts:**0**Joined:**Mon Jan 28, 2013 8:08 pm

Permutations, Combinations - IB Maths HL

The chairperson can be chosen by ways

The secretary can be chosen by ways

And the three ordinary members can be chosen by ways

So, the members of this sub-committee can be chosen by

ways.

The chairperson can be chosen by ways

The secretary can be chosen by ways

And the three ordinary members can be chosen by ways

So, the members of this sub-committee can be chosen by

ways.

- elizabeth
**Posts:**0**Joined:**Mon Jan 28, 2013 8:09 pm

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