Question

20! / 16! =
A. 24
B. about 16
C. 116,280
im confused what are they asking and how do i solve

Answer 1

are the ! part of the equation?

Answer 2

its 20! -> 20 factorial so its 20*19*18*17*16 all the way down to 1 but since its over 16 youre actually only looking at 20*19*18*17 which equals C 116,280

Answer 3

yes

Answer 4

oh okay

Answer 5

clarification : (20*19*18*17*16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1) / (16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1)

so everything up to 16 cancels out

Answer 6

so do i always go down