- #1
rover
hi,
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!)
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, don't know what to do next! )Thanks in advance!
Rover
BTW this not for homework, I got a test soon !
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!)
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, don't know what to do next! )Thanks in advance!
Rover
BTW this not for homework, I got a test soon !
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