Tough and Tricky questions: Combinations.
Seven students - 4 boys and 3 girls - are to sit side by side for a makeup exam. How many ways could they arrange themselves given that no two boys and no two girls can sit next to one another?
Choose the correct choice from the following
A) 12	B) 36	C) 72	D) 288	E) 720
4!*3!*2 = 24*6*2 4 *3 *2= 
<gadget id="calculator">4 *3 *2</gadget>
<output>24</output>
24*6*2= 
<gadget id="calculator">24*6*2</gadget>
<output>288</output>
288 ways.   Ans. 288) 288
<result>D</result>
Tough and Tricky questions: Combinations.
Seven students - 4 boys and 3 girls - are to sit side by side for a makeup exam. How many ways could they arrange themselves given that no two boys and no two girls can sit next to one another?