perplexus.info :: Just Math : Committee Choice Concern

Committee Choice Concern (Posted on 2010-05-17)

A committee of 5 is to be chosen from a group of 9 people.

Determine the total number of ways this can be accomplished, given that:

(i) Harold and Warren must serve together or not at all, and:

(ii) Lucy and Deanna refuse to serve with each other.

See The Solution Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: just counting (corrected)

| Comment 2 of 3 |

(In reply to just counting by Ady TZIDON)

Two more cases, in addition to Ady's:

Case 3: HW, not D or L: select another 3 out of 5, ie 10

Case 3': Not HW, not D or L: select 5 out of 5, equal 1

So, previous 30, + 10 + 1 = 41

Posted by Steve Herman on 2010-05-17 14:42:42

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