What is the sum of digits of (5!*4!*3!*2! - 144*120)/5! Pick:
A) 22
B) 4
C) 12
D) 3
E) 7
(5!*4!*3!*2! - 144*120)/5!   =(5!*4!*3!*2! - 24*6*5!)/5!   =(5!*4!*3!*2! - 4!*3!*5!)/5!   =5!*4!*3!(2!-1)/5!   =120   Sum of digits=3   Answer 3
<result>D</result>
What is the sum of digits of (5!*4!*3!*2! - 144*120)/5!