Seven female friendsseven male friends will be pictured in a advertising photo. If the photographer wants to line them up in one row, with menwomen alternating. How many possible arrangements may she chose?  Answers.
A) 50803200 B) 1680 C) 1152 D) 576 E) 70
now any of the alternate 8 places can be filled by 7 male or female in 7!   similarily,   other 7 alternate places can be filled in 7!   hence required probability= 2*7!*7!=5,08,03,200   hence 50803200
<result>A</result>
Seven female friendsseven male friends will be pictured in a advertising photo. If the photographer wants to line them up in one row, with menwomen alternating. How many possible arrangements may she chose?