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I have been trying to solve the following questions (and similar) for 2 hours now without any major success.

the questions are:

1) In how many different ways can 7 different books be arranged in a row if

a. 3 specific books must be together

b. two specified books must occupy the ends

(I am TOTALY stuck!!! on this one!!!!!) :surprised :yuck:

the other question i need help with is

2) A committee of 5 men and 4 women is to be selected from 9 men and 8 women. Amongst these is a married couple. if the married couple can not serve together, how many committees can be formed

(the total number of committee that can be formed is 9C5 * 8C4, dont know what to do next!!! )

Thanks in advance!!!

Rover

BTW this not for homework, I got a test soon !!!!!!!!!!!!!!!!!!!!!!!!!!!

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# Homework Help: Help with counting methods

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