Wednesday

October 22, 2014

October 22, 2014

Posted by **Therese** on Friday, February 22, 2013 at 8:53am.

a. there is an equal number of architects, engineers and electricians

b. two particular engineers cannot be in the committee?

c. there are at least 3 electricians?

- Math -
**JJ**, Friday, February 22, 2013 at 1:19pma. equal number of each

Combinations again..

architects 4!/(2!2!)

engineers 6!/(2!4!)

electricians 9!/(2!7!)

b. remove the 2 engineers from the choices which would leave 4 architechts, 4 engineers and 9 electricians Now, we have 17 to choose from to make a group of 6.

17!/(6! 11!)

- Math -
**Therese**, Friday, February 22, 2013 at 8:32pmThanks much :)

**Answer this Question**

**Related Questions**

Math - Out of 4 architects, 6 engineers and 9n electricians, how many ways can a...

Statistics - Out of 4 architects, 6 engineers and 9n electricians, how many ways...

math - a political discussion group consists of five Democrats and six ...

math (statistics) - There are 15 qualified applicants for 5 trainee positions in...

psychology - Mensa is a group for those who score within the top 2% on a ...

Data management - The camera club has 5 members, and the math club has 8 members...

Math - I fell asleep trying to figure this one out ... if you could help I would...

math - How many ways can a committee of 4 people be selected from a group of 10 ...

World History - City-States Essay Assignment In what ways were the Indus Valley ...

World History - City-States Essay Assignment In what ways were the Indus Valley ...