Question
Mathematics Question on Complex Numbers and Quadratic Equations
If the sum of first n positive integer is 1/(5) times the sume of their squares, then n equals
A
5
B
6
C
7
D
8
Answer
7
Explanation
Solution
The correct option is (C): 7
If the sum of first n positive integer is 1/(5) times the sume of their squares, then n equals
5
6
7
8
7
The correct option is (C): 7