Question

2.
n! - /20, then find the value of n.
3.
If n! = 120 x (n-3)!, then find the value of n.​

Answer 1

Answer:

1w234567890½⅔⅗⅘⅝⁶⁷⁸⁹ⁿ

Answer 2

n(n-1)(n-2)(n-3)! = 120(n-3)!
n(n-1)(n-2) = 6x5x4
On comparing, n = 6