in how many ways seven letters between A & B be arranged from alphabets so that repetition is not allowed?  Options
A) 24P7 * 2!  B) 24P7 * 3!  C) 24P7 * 4!  D) 24P7 * 5!  E) 24P7 * 6!
7 letters between 24P7 * 2! &amp; B &amp;,24P7 * 2!,B has a fixed position   so,   24P7 * 2!   24P7 * 2!NSWER:24P7 * 2!
<result>A</result>
in how many ways seven letters between A & B be arranged from alphabets so that repetition is not allowed?