Q. The products of any $r$ consecutive natural numbers is always divisible by
A) $r!$
B) $r^{2}$
C) $r^{n}$
D) None of these
Explanation
(a)
The product of $r$ consecutive natural numbers
$= 1.2.3.4\ldots..r = r!$
The natural number will divided by $r!$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.