TANCET
Group Studies
Mock Tests
Notes
Library
Webinars
Join Now
Question Practice
Share
Target (sec):
00:00
Qn #1695
Share
If the mean of the squares of first $n$ natural numbers be $11$, then $n$ is equal to
A.
$-\dfrac{13}{2}$
B.
11
C.
5
D.
4
Discussion
Join the Conversation
Log in to post comments and replies.
Log In
Open Discussion