General Aptitude
Arithmetic Aptitude
Data Interpretation
Verbal and Reasoning
Verbal Ability
Logical Reasoning
Verbal Reasoning
Non Verbal Reasoning
Engineering
Mechanical Engineering
Programming
C Programming
C++ Programming
C# Programming
Java Programming
Technical MCQs
Database
Networking
Basic Electronics
Digital Electronics
Medical Science
Microbiology
Biochemistry
Biotechnology
Biochemical Engineering
404 Not Found
Home
404 Not Found
Oops! That page can't be found.
Back to homepage
Q1
:
(1
2
+ 2
2
+ 3
2
+ ... + 10
2
) = ?
A
330
B
345
C
365
D
385
Solution
ANS:
D
- 385
We know that (1
2
+ 2
2
+ 3
2
+ ... +
n
2
) =
1
n
(
n
+ 1)(2
n
+ 1)
6
Putting
n
= 10, required sum =
1
x 10 x 11 x 21
= 385
6
Share :
