E
Editor
Sep 18, 2022
In how many ways can a party of seven persons arrange themselves in a row of seven chairs?
Difficulty: Easy
A:
7!
B:
$\frac{7!}{(7-1)!}$
C:
(7-1)!
D:
$\frac{6!}{2!}$
ID: 63273dbaca83163ac3a123fb