In how many Q ways can 4 white and 3 black chess pieces be arranged in a row such that they occupy alternate places? Assume that the pieces are distinct.  Choose the correct answer:	A) 288	B) Q=144	C) Q=12	D) Q=48	E) 96
4 white chess pieces can be arranged in 4! ways and 4 black pieces can be arranged in 3 ! ways.   W_W_W_W   Number of ways = 4!*3! = 24 * 6= 
<gadget id="calculator">24 * 6</gadget>
<output>144</output>
144   Answer Q=144
<result>B</result>
In how many Q ways can 4 white and 3 black chess pieces be arranged in a row such that they occupy alternate places? Assume that the pieces are distinct.