Question 1188868

Someone owns 6 different mathematics books and 4 different computer science books 
and wishes to fill 5 positions on a shelf. If the first 2 positions are to be occupied 
by math books and the last 3 by computer science books, in how many ways can this be done?
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<pre>
    In  (6*5) * (4*3*2) = 720 different ways.    <U>ANSWER</U>
</pre>

Solved.