Six students - 3 girls and 3 boys - are to sit side by side for a makeup exam. How many ways could they arrange themselves given that no two girls and no two boys can sit next to one another? Select:
A) A)12  B) B)36  C) C)72  D) D)240  E) E)720
in order not to have two girlss or two boys next to one another, we must make an alternate sitting arrangement. (B-G-B-G-B-G) or (G-B-G-B-G-B).   Total ways = 2721*3!*3!   =2*6*6= 
<gadget id="calculator">2*6*6</gadget>
<output>72</output>
72   Ans - 72
<result>C</result>
Six students - 3 girls and 3 boys - are to sit side by side for a makeup exam. How many ways could they arrange themselves given that no two girls and no two boys can sit next to one another?