The ratio of the factorial of three times a number to the product of factorial of that number and factorial of twice the number is 15. What is the number? ( ADP COMPANY)

The ratio of the factorial of three times a number to the product of f

1.	The ratio of the factorial of three times a number to the product of factorial of that number and factorial of twice the number is 15. What is the number? ( ADP COMPANY)
A.	4
B.	6
C.	2
D.	3
Answer» D. 3