In how many ways can 4 boys and three girls sit in a row such that all boys sit together? Pick:
A) A)670	B) B)484	C) C)720	D) D)576	E) E)398
Treat all boys as one unit. Now there are four students and they can be arranged in 4! ways. Again four boys can be arranged among themselves in 4! ways.   Required number of arrangements   = 4! * 4! = 24 * 24= 
<gadget id="calculator">24 * 24</gadget>
<output>576</output>
576.   Answer:576
<result>D</result>
In how many ways can 4 boys and three girls sit in a row such that all boys sit together?